Excuse me, is this the place for English Corner? ()
Are you a new comer?
B. It is good place.
C. It’s a place to practice English.
D. Yes. You are right.
查看答案
The evidence collected by the police point that the suspect was ()and did not commit any crime.
A. clean
B. faultless
C. harmless
D. innocent
A:消防问题
B:重税问题
C:城市防卫问题
D:衣冠风俗问题
E:桥梁安全问题
F:官宦出行问题
G:官储粮食问题
A:有自吸作用;
B:实际流量只与单位时间内活塞扫过的面积有关;
C:理论上扬程与流量无关,可以达到无限大;
D:启动前必须先灌泵,并将出口阀门关闭。