起控制微循环分闸门作用的血管是()
A.微动脉
B.微静脉
C.真毛细血管
D.通毛细血管
E.小动脉
参考答案:C
He seems to be giving the information that he didn’t enjoy himself in Paris. _____, he had a wonderful time.
A.In time
B.Now that
C.As a result
D.On the contrary
在铝酸钠溶液中添加晶种,溶液的稳定性()。
A、升高
B、降低
C、不变
D、无关