党委多长时间召开一次民主生活会()
A、半年
B、1年
C、一年半
D、两年
参考答案:A
可使肥厚型梗阻性心肌病的心脏杂音减弱的药物是()。
A.硝酸甘油
B.地高辛
C.异丙肾上腺素
D.亚硝酸异戊酯
E.普萘洛尔
We are pleased to know that you have planned to come to the Autumn Guangzhou Fair.We wish to discuss with you some other important things if you could come()your earliest convenience.
A.by
B.on
C.in
D.at