中华人民共和国农业技术推广法是在()年颁布的
A.1991
B.1993
C.1995
D.1997
参考答案:B
-- I’m not getting on well with Jim recently.
--- ______ he didn’t show up at your birthday party the other day.
A.No doubt
B.No problem
C.No way
D.No wonder
电路中都包含()三个基本组成部分。
A.负载
B.电源
C.中间环节
D.导线