排水立管在底层和楼层转弯时应设臵()。
A.检查口
B.检查井
C.闸阀
D.伸缩节
参考答案:A
—Hi, what’s wrong with the girl from Japan?
—Oh, she feels lonely, she has ________friends in China.
A.few
B.a few
C.little
D.a little
Everything________life in the spring with the warm weather and long days. [ ]
A. comes back
B. comes down
C. comes to
D. comes along