河豚毒素的主要毒作用是（）。A、引起血压下降 B、引起颅神经损伤 C、引起体温下降

制作引药时，电雷管只能由药卷的顶部装入，并且要全部插入（）内。

小亮家在学校东偏南30°方向上，离学校2千米；学校在小亮家______方向上，离小亮家______千米．

Everyone knows that fish is good for health.  16  But it seems that many people don’t cook fish at home. Americans eat only about fifteen pounds of fish per person per year, but we eat twice as much fish in restaurants as at home. Buying, storing, and cooking fish isn’t difficult.  17  This text is about how to buy and cook fish in an easy way.

18   Fresh fish should smell sweet: you should feel that you’re standing at the ocean’s edge. Any fishy or p smell means the fish isn’t fresh.   19  When you have bought a fish and arrive home, you’d better store the fish in the refrigerator if you don’t cook it immediately, but fresh fish should be stored in your fridge for only a day or two. Frozen fish isn’t as tasty as the fresh one.

There are many common methods used to cook fish.   20   First, clean it and season it with

your choice of spices(调料). Put the whole fish on a plate and steam it in a steam pot for 8 to 10

minutes if it weighs about one pound. (A larger one will take more time.) Then, it’s ready to serve.

17（）

A. Do not buy it.

B. The easiest is to steam it.

C. This is how you can do it.

D. It just requires a little knowledge.

E. The fish will go bad within hours.

F. When buying fish, you should first smell it.

G. The fats in fish are thought to help prevent heart disease.

阅读下面《孟子》选段，回答问题。（5分）

孟子之平陆，谓其大夫曰：“子之持戟之士，一日而三失伍(失职)，则去之否乎？”曰：“不待三。”“然则子之失伍也亦多矣。凶年饥岁，子之民，老羸转于沟壑，壮者散而之四方者，几千人矣。”曰：“此非距心(大夫的名字)之所得为也。”曰：“今有受人之牛羊而为之牧之者，则必为之求牧与刍矣。求牧与刍而不得，则反诸其人乎？抑亦立而视其死与？”曰：“此则距心之罪也。”

他日，见于王曰：“王之为都者(治理都邑的人)，臣知五人焉。知其罪者，惟孔距心。”为王诵之。王曰：“此则寡人之罪也。”(《孟子·公孙丑下》)

小题1:孟子以放牧牛羊作比，批评孔距心，对孟子的意图理解正确的一项是(　　)( 2分)

A．指出孔距心的能力太差，只能干牧羊之类的事情。

B．如果自己做不好就应当让更有才能的人来做。

C．如果不能自做主张，为什么不辞职？

D．国君有责任，难道你自己就没有一点责任吗？小题2:文章最后说孟子“为王诵之”，“诵”在这里的意思是“陈述”。根据原文回答：孟子向王陈述了什么？他陈述的目的是什么？( 3分)

答：                                                                

与扁平苔藓的发病无关的是（）

A.精神因素

B.创伤因素

C.免疫异常

D.某些药物

E.遗传因素