被覆在毛细血管后微静脉内表面的是
参考答案:B
The boy doesn't work hard enough at his lesson. As for his intelligence, he has ______ he can
possibly make use of.
A.other than
B.rather than
C.more than
D.less than
《京都议定书》哪个国家的国会没有通过()?
A、日本
B、美国
C、德国
D、英国