医德评价的标准不包含（）
A.有利
B.自主
C.公正
D.互助
E.奉献
参考答案：E
Nowadays, the iron and steel industry ________ the key link in socialist production.[ ]
A. is
B. are
C. was
D. were
在货船构造安全证书上记载的签发日（）周年日前后3个月内应进行期间检验。
A.第2个
B.第3个
C.第4个
D.A或B
