河流的水位常随季节变动而发生变化,这与它的补给形式有关。
A. 对
B. 错
《针灸甲乙经》的作者是()。
A. 扁鹊
B. 孙思邈
C. 华佗
D. 皇甫谧
It is hard to... 做……很困难e.g. It is hard to get ready for the trip all by myself. 独自为旅行做准备有点困难。1______________________________ (为上学做准备很难。)2______________________________ (读英文小说很难。)
drive sb. nuts 让某人发疯e.g. What he has said drove me nuts. 他说的话让我发疯。1What he has done _____________________ ( 让他的父母发疯).That he did not learn anything in college ____________________ ( 让他的老师发疯).