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刷刷题刷刷变学霸
举一反三
【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man’s life. For years sc...
A.
It is the production by termites that is now of greater concern.
B.
What scientists worry more about is the output from burning fuels.
C.
The output from burning fuels is now rising steadily.
D.
The burning of fuels generates much less carbon dioxide than termites do.
【多选题】肌细胞呈 [填空(1)] 状，故又称 [填空(2)] ；其细胞质又称 [填空(3)] ，细胞膜又称 [填空(4)] ，细胞质中的滑面内质网发达并交织成网，故又称 [填空(5)]
A.
纤维状
B.
肌纤维
C.
肌浆
D.
肌膜
E.
肌浆网
【单选题】There are approximately three quarters of a ton of termites (白蚁) for every person on Earth. It now turns out that these critters may be helping to alter the climate and affect man's life. For years sc...
A.
low temperatures are created by using a house
B.
the house is made green in order to keep heat
C.
heat is prevented from escaping outside
D.
everything is kept green in a house
【单选题】在计算机技术高度发达的今天，我们可以借助计算机完成许多工作，但正是因为对计算机的过度依赖，青少年动手能力的发展受到抑制。他们在学习和生活中无处不使用计算机来寻找答案，而不是亲自动手解决问题。因此，过多使用计算机解决学习和生活问题的青少年实际动手能力要比其他孩子差。 以下最能支持上述结论的一项是______。
A.
过度依赖计算机的青少年和较少接触计算机的青少年在智力水平上差别不大
B.
大多数青少年在使用计算机解决问题的同时也会自己动手解决一些问题
C.
青少年能利用而非依赖计算机来解决实际问题，本身也是对动手能力的训练
D.
那些较少使用计算机的青少年自己动手解决学习和生活问题的能力较强