【判断题】Marina měla problémy s bytem.
【单选题】In the letter Shelia talked about________ possible reasons(原因) for Alice's probl
A.
28. In the letter Shelia talked about________ possible reasons(原因) for Alice's problems. A. four
【单选题】普通V带轮设计时,轮毂的长度L应根据 来确定,轮缘宽度应根据 来确定
【单选题】If such unhappy people don't change their bad behavior, the author's solution to the problem is that ______.
A.
people should avoid contact with them
B.
people should criticize their misconduct
C.
people should help them recognize the bad effects of the habit
D.
people should show no respect and politeness to them
【简答题】J’ai un problème. Voici ce ____il s’agit.
【单选题】关于原子序数从11到17的七种元素,下列说法 不正确 的是
D.
若其中某非金属元素最高价氧化物对应水化物的化学式为H n RO m ,则其气态氢化物的化学式为H 2m − n R