【判断题】PCV阀在发动机怠速时全开,以便进更多的空气,提高发动机的转速
【单选题】—What's wrong with your watch? —It is ________.
【多选题】行走系统是马车行驶中的关键旋转部件,主要包括哪两个部分( )?
【单选题】According to the author, how is the approach of 'physicists to solving scientific problems?
A.
Practical for scientific purposes.
B.
Detrimental to scientific progress.
C.
Unimportant in most situations.
D.
Expedient, but of little long-term value.
【简答题】英译汉。 1. go to school __________ 2. What's wrong with ... __________ 3. be lost __________ 4. It's kind of you to help us. __________ 5. Some......
【单选题】宏观经济政策的调节手段中,直接调控是指()。
【单选题】A ) physicists' contribution to humanity. B) Stories about some female physicists. C) Historical evolution of modern physics. D) Women's changing attitudes to physics.
A.
physicists' contribution to humanity.
B.
Stories about some female physicists.
C.
Historical evolution of modern physics.
D.
Women's changing attitudes to physics.
【单选题】The leading theoretical physicists are searching for a 'theory of everything' because ______.
A.
the existing theories are out of date
B.
the theories are not enough
C.
some of the theories are wrong
D.
the existing theories are somewhat contradictory to each other
【多选题】行走系统是马车行驶中的关键旋转部件,主要包括哪两个部分?