下列有关溶液的说法中,正确的是 ( ) A.溶液是化合物 B.溶液都是均一、稳定

题型:选择题

问题:

下列有关溶液的说法中,正确的是 (  )

A.溶液是化合物

B.溶液都是均一、稳定的

C.溶液都是无色、透明的

D.冰和水混合在一起,冰是溶质,水是溶剂

考点:溶液的配制饱和溶液,不饱和溶液溶液的定义、组成及特征悬浊液、乳浊液
题型:选择题

下列仪器可以直接加热的是(  )

A.试管

B.烧杯

C.量筒

D.烧瓶

题型:选择题

输卵管妊娠,哪种情况不适于化学药物治疗()

A.要求保留生育功能

B.无输卵管破裂证据

C.无明显内出血

D.输卵管包块<4cm

E.血β-hCG<5000U/L

题型:选择题

语言理解阶段为()

A.初生~9个月

B.9~10个月

C.1~6岁

D.5~7岁

E.7~9岁

题型:选择题

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

What is the number of male employees at the factory ?()
(1) If the factory were to hire 150 more employees and 2/3 of them were female, the ratio of male to female employees would be 8:3.
(2) The factory has at least twice as many male employees as female employees, and it employs at least 150 females.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

题型:选择题

墙体节能工程采用的保温材料和粘结材料等,进场时应对其()等性能进行复验,复验应为见证取样送检。

A.燃烧性能

B.材料的密度

C.保温材料的导热系数、材料密度、抗压强度或压缩强度

D.粘结材料的粘结强度

E.增强网的力学性能、抗腐蚀性能。

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