下列所示图象能正确反映对应的实验或事实的是( ) ABCD图象 实验或事实

题型:选择题

问题:

下列所示图象能正确反映对应的实验或事实的是(  )

ABCD
图象

实验或事实将等质量的镁和铝分别与足量的盐酸反应20℃时,向一杯不饱和的KNO3溶液中逐步加入KNO3晶体向稀盐酸中滴加过量的烧碱溶液将一定质量的碳在密闭容器中(含空气)加热

A.A

B.B

C.C

D.D

考点:质量守恒定律金属活动性溶液的酸碱性与pH值
题型:选择题

阅读下面短文,用所给动词的适当形式填空,使短文完整、通顺。每空不限一词。

      Rose is one of the funniest girls in her class. She looks like a boy, and she is good at performing. So she

(1)________ (choose) to play Harry Potter by her classmates last week. She said happily, "I'm sure that I am

able to do the job well because I (2)________ (see) the movie many times already."

      Dick, one of Rose's best classmates, is also an actor in the play. He (3)________ (like) to perform the play

with Rose. He said, "We are confident that we (4)________ (do) well in our school art festival next week." 

      Mrs. Smith, their teacher, pays much attention to their play. She often encourages them. Yesterday

afternoon when she (5)________ (watch) their performance, she took photos of them.

题型:选择题

先锋IV的通用名是()

A、头孢氨苄

B、头孢子克洛

C、头孢子拉啶

D、头孢羟氨苄

题型:选择题

下颌舌侧牙槽嵴形态为斜坡型者,舌杆应()

A.与黏膜平行,分开黏膜少许或轻轻接触

B.与黏膜平行,不接触,分开黏膜3~4mm

C.与黏膜平行,并慎密接触

D.与黏膜垂直,并分开少许

E.以上都不对

题型:选择题

患者昨日起病,恶寒发热,头痛,微汗出,胸闷,欲呕,舌苔薄白,脉微略数,重按无力。其治宜()

A.小建中汤

B.桂枝去芍药汤

C.小柴胡汤

D.葛根加半夏汤

E.桂枝汤

题型:选择题

反映测验工具有效性、正确性的是( )

A.效度

B.信度

C.反映度

D.区分度

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