发动机汽缸沿径向的磨损呈不规则的()
A.圆形
B.圆柱形
C.圆锥形
D.椭圆形
参考答案:D
—I think Sally is really a good teacher for you guys.
--- _____. We all. feel lucky to have her teaching us.
A.You said it
B.All right
C.Thank you so much
D.My pleasure
细菌的基本检验技术包括传统检验技术和现代检验技术。
下列不属于传统检验技术的是()
A.形态学检查
B.细菌分离培养与鉴定
C.抗生素敏感性试验
D.血清学检查
E.免疫荧光技术