【单选题】Who did he speak to? Did you see_______?
A.
Did you see who did he speak to?
B.
Did you see who he spoke to ?
【单选题】We did hold a meeting yesterday, but you______, so we did not inform. you.
A.
did not need attending
C.
did not need to attend
【单选题】维持蛋白质分子二级结构稳定的主要化学键是
【单选题】维持蛋白质分子二级结构稳定的主要化学键是( )
【简答题】看图,补全对话。 例: — Did you go swimming? — Yes, I did. 1. — Did you go skating? — __________________________. 2. — Did you ___________________? — __________________________.
【简答题】When you travel(旅游) in Hong Kong, you must be careful of the traffic(交通) rules, because the traffic keeps to the left and it’s different from that of the interior(内地) of China. Before crossing the str...
【单选题】Can you identify the logical fallacy in this claim? “Traffic jam can be solved by traffic control in the downtown area. ”