患者，男，55岁。胸痛如窒，痛引肩背，气短喘促，四肢沉重，形体肥胖，舌苔浊腻，脉滑。

为了探究“种子萌发的环境条件”，某同学用菜豆种子分别采取四种不同的处理方法，进行了对照实验，实验结果如下表．请根据表格分析回答问题．

瓶号	处　　理　　方　　法	种子萌发情况
1	1粒种子，不给水，置于温暖处	未萌发
2	1粒种子，给适量水，置于温暖处	萌发
3	1粒种子，给适量水，置于冰箱里	未萌发
4	1粒种子，给过量水，置于温暖处	______

（1）请根据所学知识推测，将表格4号瓶的种子萌发情况填写完整．

（2）该实验可作为对照组的是______号瓶，1号和2号瓶所形成的对照实验中变量是______．

（3）3号瓶种子不萌发，是因为______．

（4）本实验的不足之处是______．

《防突规定》规定的特点有（）超前性和完整性。

A、强制性

B、主动性

C、重要性

D、原则性

驾驶机动车驶离高速公路时，在这个位置怎样行驶？（）

A．继续向前行驶

B．驶入减速车道

C．车速保持100公里/小时

D．车速降到40公里/小时以下

某家具厂因生产经营需要搬迁到外区。该厂为工人们提供了上、下班的通勤车，办理饭卡、工卡等手续，还增加了工人的交通补贴。该厂绝大部分职工即日起去新厂区上班，但有20多名职工不愿意去新厂上班，并向该厂提出解除劳动合同的要求，并要求工厂给予一次性经济补偿金。工厂则认为，虽然生产地点搬迁，但新厂距原厂距离仅十多公里，且厂方已经提供了上、下班的通勤车等条件，劳动合同处于能够继续履行状态，绝大部分职工都认为能够履行，自己也没有主动辞退职工，是职工不愿意到新厂上班，他们的解除行为应当属于辞职性质，工厂不该支付经济补偿金。

双方协商不成，职工提出劳动仲裁，提出解除劳动合同并要求工厂支付经济补偿金。

职工能否要求解除劳动合同，法律依据是什么？职工能否要求解除劳动合同的经济补偿金，为什么？

[A] The strain of HIV that was discovered in Sydney intrigues scientists because it contains striking abnormalities in a gene that is believed to stimulate viral duplication. In fact, the virus is missing so much of this particular gene-known as nef, for negative factor--that it is hard to imagine how the gene could perform any useful function. And sure enough, while the Sydney virus retains the ability to infect T cells--white blood cells that are critical to the immune system’s ability to ward off infection--it makes so few copies of itself that the most powerful molecular tools can barely detect its presence.

[B] If this speculation proves right, it will mark a milestone in the battle to contain the late-20th century’s most terrible epidemic. For in addition to explaining why this small group of people infected with HIV has not become sick, the discovery of a viral strain that works like a vaccine would have far-reaching implications. "What these results suggest," says Dr. Barney Graham of Tennessee’s Vanderbilt University, "is that HIV is vulnerable and that it is possible to stimulate effective immunity against it."

[C] But as six years stretched to 10, then to 14, the anxiety of health officials gave way to astonishment. Although two of the recipients have died from other causes, not one of the man’s contaminated blood has come down with AIDS. More telling still, the donor is also healthy. In fact his immune system remains as robust as if he had never tangled with HIV at all. What could explain such unexpected good fortune

[D] At the very least, the nef gene offers an attractive target for drug developers. If its activity can be blocked, suggests Deacon, researchers might be able to bring the progression of disease under control, even in people who have developed full-blown AIDS. The need for better AIDS-fighting drugs was underscored last week by the actions of a U. S. Food and Drug Administration advisory panel, which, recommended speedy approval of two new AIDS drugs. Although FDA commissioner David Kessler was quick to praise the new drugs, neither medication can prevent or cure AIDS once it has taken hold. What scientists really want is a vaccine that can prevent infection altogether. And that’s what makes the Sydney virus so promising--and so controversial.

[E] A team of Australian scientists has finally solved the mystery. The virus that the donor contracted and then passed on, the team reported last week in the journal Science, contains flaws in its genetic script that appear to have rendered it harmless. "Not only have the recipients and the donor not progressed to disease for 15 years," marvels molecular biologist Nicholas Deacon of Australia’s Macfarlane Burnet Centre for Medical Research, "but the prediction is that they never will." Deacon speculates that this "impotent" HIV may even be a natural inoculant that protects its carriers against more virulent strains of the virus.

[F] But few scientists are enthusiastic about testing the proposition by injecting HIV--however weakened--into millions of people who have never been infected. After all, they note, HIV is a retrovirus, a class of infectious agents known for their alarming ability to integrate their own genes into the DNA of the cells they infect. Thus once it takes effect, a retrovirus infection is permanent.

[G] About 15 years ago, a well-meaning man donated blood to the Red Cross in Sydney, Australia, not knowing he has been exposed to HIV-1, the virus that causes AIDS. Much later, public health officials learned that some of the people who got transfusions containing his blood had become infected with the same virus; presumably they were almost sure to die.

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