改革是中国的第()次革命。
A、一
B、二
C、三
参考答案:B
水逆证呕吐的特点是()
A.口渴欲饮,饮后即吐
B.吐利并作
C.朝食暮吐
D.吐物酸腐
E.朝食暮吐,暮食朝吐
______ the help of man-made satellites, we can know what the weather will be like in the next few days. [ ]
A.Under
B.With
C.Using
D.By