【单选题】Because of the severe snow storm and the road blocks, the air force dropped food and medical supplies close the city.
【单选题】—I’m sorry I stepped on your foot; it was an accident. —It wasn’t! You did it ______________ .
【单选题】— I'm sorry !I broke the window of your car while I was playing football. — What? _____I really wanted to hit you. [ ]
A.
That couldn't be better.
【单选题】要配制pH=5的缓冲溶液,选用下列哪组缓冲对
B.
H 2 CO 3 -NaHCO 3 (pKa=6.37)
C.
HCOOH-HCOONa(pKa=3.76)
D.
H 3 PO 4 -NaH 2 PO 4 (pKa=2.13)
【判断题】写作求职信时,应该用自然、平实、庄重的书面语体。
【单选题】. . Shanghai is trying to control ________ number of cars on the road to ensure clean air for ________ 2010 World Expo.
【简答题】A.air transport B.road transport C.rail transport D.multimodal transport
【简答题】Read and choose. (读一读,选一选) I'm Tom. I'm from Canada. I'm tall. 1 like playing the piano. I like playing basketball. I like collecting stamps. I live next to my school. I'm going to be a teacher in the...
【多选题】104建筑施工现场“三通一平”指的是( )