The old man _____ like loud talking.[ ]
A. isn't
B. can't
C. don't
D. doesn't
答案:D
与气虚兼并的虚证,少见的是
A.气虚髓亏
B.津气亏虚
C.气阴两虚
D.气血两虚
E.阳气亏虚
发动机运转性能指标有()等。
A.排气品质
B.噪声
C.起动性能
D.振动