【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 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】防己黄芪汤的臣药可以增强君药何种作用( )
【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( )