改革开放之初,如此多的海外华人投资大陆建设,是受到了以下哪些因素的影响()
A、叶落归根
B、金钱利益
C、政治原因
D、以上都不是
参考答案:A
My mother has not yet recovered from the illness, but she is __________ getting better.
A.frequently
B.gradually
C.fluently
D.exactly
在压力钢管内施工时,照明电压上限为()。
A.12V
B.24V
C.36V
D.110V