水泵吸水口直径一般比吸水管小,可采用()连接。
A.管箍
B.直接
C.同心大小头
D.偏心大小头
参考答案:D
12.--I ____ becoming an astronaut (宇航员) when I was at school.
-- Really? Do you still think it will ____ ?
A.was dreaming of…come true
B.was dreaming…come true
C.was dreaming of…come truth
D.was dreaming…come truth
汉代儒家与先秦儒学的关系是:()
A.因循守旧
B.完全更新
C.外在形式的变化
D.继承和发展