【单选题】Reading:Pulling strings to build pyramids 4. Gharib and Graff tested their theory before applying it.
【单选题】Reading:Pulling strings to build pyramids 1.It is generally believed that large numbers of people were needed to build the pyramids.
【单选题】Reading:Pulling strings to build pyramids 5. The success of the actual experiment was due to the high speed of the wind.
【判断题】普通平键连接对中性良好,装拆方便,但不能适用于精度要求高的场合。
【多选题】下列图片中能正确表示气门弹簧检查项目的有
【单选题】Reading:Pulling strings to build pyramids 3. Gharib had previously done experiments on bird flight.
【单选题】Reading:Pulling strings to build pyramids 6. They found that, as the kite flew higher, the wind force got stronger.
【单选题】听力原文:It was widely believed that he was pulling the strings behind the CEO. What does the speaker mean?
A.
Many people believed that he was giving a lot of support to the CEO.
B.
Many people believed that he was secretly controlling the CEO.
C.
Many people believed that he was secretly doing things against the CEO.
D.
Many people believed that he was secretly offering bribe to the CEO.
【单选题】Reading:Pulling strings to build pyramids 7. The team decided that it was possible to use kites to raise very heavy stones.
【单选题】Reading:Pulling strings to build pyramids 2. Clemmons found a strange hieroglyph on the wall of an Egyptian monument.