阀门的法兰连接形式代号为()。
A、1
B、2
C、4
D、6
参考答案:C
单词拼写。
1. People make f______ of her because she always speaks foolishly.
2. My English teacher, never fails to e______ us to study hard.
3. She lay ______ (醒着的) all night long.
4. Give my best ______ (祝愿) to your brother.
5. The ship sank ______ (在……下面) the waves.
下列降压药物中便秘发生率最高的药物是
A.硝苯地平
B.维拉帕米
C.氯沙坦
D.普萘洛尔
E.卡托普利