按《化妆品卫生规范》(1999年12月),新开发的育发类化妆品在投放市场前,为评价其

题型:单项选择题

问题:

按《化妆品卫生规范》(1999年12月),新开发的育发类化妆品在投放市场前,为评价其安全性,必须进行的理化检验包含()

A.铅、苯酚、氢醌

B.苯酚、氢醌、pH

C.pH、斑蟊、氮芥

D.氢醌、pH、斑蟊

E.斑蟊、氮芥、铅

考点:理化检验技术理化检验技术题库
题型:单项选择题

(20) is NOT a concept of White Box Testing.

A. You should execute all logical decisions on their tree and false sides.
B. You should execute all independent paths within a module at least once.
C. You should execute all loops at their boundary conditions.
D. You should execute all interfaces at their boundary conditions.

题型:单项选择题

女,34岁,左侧腰部疼痛,有外伤史,CT检查如图所示,下列说法正确的是()

A.左肾外缘有“半月”形的高密度影

B.脾下缘可见不规则的高密度影

C.左肾受压变形

D.考虑为左肾包膜下出血

E.考虑为脾出血

题型:单项选择题

动词填空

小题1:---Did you notice a boy in blue pass by just now?

---No, sir.  I ________(watch) the TV news about Yao Ming.

小题2:Mr.  Smith writes short stories, but he _____ ( write ) a TV play these days.

小题3:The woman is very pleased because her son ________(mop)up the floor.

小题4:It is wrong ________ (laugh) at the blind people.

小题5:We all know twelve months ________ (make) a year.

小题6:Oh, look! It’s raining outside. We’d better _________ (not go) out.

小题7:Have you taken your medicine today?   Yes, I_________ (take) it after breakfast.

小题8:It’s necessary to spend as much time as you can _________(speak) English in and after class.

小题9:He        (come) to the party if he has free time this evening.

小题10:Since Mr. Wu came here, he ________ (teach) for two years.

题型:单项选择题

体积为1L的干燥烧瓶中用排气法收集HCl后,测得瓶中的气体对氢气的相对密度为16.25(同温同压),将此烧瓶倒置于水中做喷泉实验后,进入烧瓶的液体体积为(    )

A.1 L

B.7/8 L

C.7/15 L

D.8/15L

题型:单项选择题

小区制移动通信网的服务区域如何划分?

更多题库