采用步行测速时,人快跑能跟上车组的速度,约为()。
A.10km/h
B.13km/h
C.15km/h
D.17km/h
参考答案:C
—I've got a new job in New York.
—Oh, ______, but I'll miss you. [ ]
A. that's too bad
B. that's a problem
C. that's OK
D. that's great
不宜采用电休克治疗的精神分裂症是()
A.紧张型
B.青春型
C.偏执型
D.单纯型
E.伴严重自杀