男式羽绒服(面料为涤纶，里料为尼龙)

双打比赛的第一局，由A发球，X接发球，第三局5：3交换方位后比分达到11：12时，A/B方提出接发球次序有误，下一回合应由（）

A、Y发球，B接发球或X发，A接发球

B、Y发球，A接发球或X发，B接发球

C、Y发球，B接发球

D、X发球，A接发球

如图所示：某实验小组的同学为了验证大棚蔬菜的生理活动，将A装置（内装籽粒饱满的辣椒种子）和B装置（辣椒幼苗）用透明玻璃管连接．请据图回答：

（1）向A装置中加适量的水，一段时间后，B装置中幼苗的光合作用将______，其原因是______．

（2）如果要证明幼苗的呼吸作用，必须对B装置进行______处理．

（3）实验过程中，玻璃罩内壁上出现了大量水珠，请分析水珠主要来自______．

（4）同学们从实验中总结出，可以通过提高大棚内______的浓度，提高蔬菜的产量．你知道有哪些简便的方法增加大棚内这种气体的浓度吗？______．

B

Each year there is an increasing number of cars on roads and street are millions of new cars are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads of filling cars with gas. Americans won’t live without cars!
Most Americans find it hard to think what life would be without a car. However some have realized the serious problem of air pollution by cars. The polluted air is poisonous(有毒的) and dangerous to health.
One way to get rid of(排除)the polluted air is to build a new kind of car. That’s what several of the large car factories are trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.
Another way is to take the place of the car engine(发动机) by something else. Engineers are now working on some new cars. Many makers believe that it will take years to develop a practical model that pleases man.
To prevent the world from being polluted by cars, we’ll have to make some change in the way many of us live. Americans, for example, have to cut down on the number of their cars. They are encouraged to travel and go to work by bike. Riding a bike is thought to help keep the air clean.
But this change does not come easily — a large number of workers may find themselves without jobs if a car factory closed down. And the problem of air pollution would become less important than that of unemployment(失业).
Although cars have brought us a better life, they have also brought us new problems.

If the number of cars is cut down, the most serious problem to American workers is to ______.

A．have no work to do

B．improve their environment

C．make their factories richer

D．go to work by bike

关于评价井试油试气选层原则—的描述正确的为（）。

A.录井岩屑在油斑级以上，气测异常，测井解释为油气层的层段要试

B.对于特殊岩性，具有油斑显示，气测异常明显的层段要试

C.钻井过程中，发生井涌、井漏、放空，且录井见良好显示的层段要试

D.新层系的主力油层要试

《浙江省水资源管理条例》规定，开发、利用、节约、保护水资源，应当（）、讲求效益，发挥水资源的多种功能，协调好生活、生产和生态环境用水。

A、全面规划

B、统筹兼顾

C、标本兼治

D、综合利用