该试验的漏诊率为()。 A.40% B.50% C.60% D.80% E.无法计算

题型:单项选择题

问题:

该试验的漏诊率为()。

A.40%

B.50%

C.60%

D.80%

E.无法计算

考点:公卫执业医师公卫执业医师23
题型:单项选择题

I have a friend. His name is Jack. ③He is healthy because(因为) he plays sports. He runs every day. He runs to his ___①____ in the morning and he runs ____②____ after school in the afternoon. He can run fast. He likes playing soccer, volleyball, tennis, basketball , ping-pong and more. He has three soccer balls, two volleyballs, six tennis rackets, four basketballs and many ping-pong balls. They are in his room. He plays sports with his friends every day. He likes many sports stars and he often watches them on TV. All my classmates say Jack is sporty (爱好体育)。

小题1:根据短文内容在①②处各填一词。

___________   ______________

小题2:划线单词them指___________ ___________

小题3:根据短文内容回答问题。Where are Jack’s volleyballs? __________________________________________________________________

小题4:把③译成汉语。

_________________________________________________________________

小题5:在文中找出文章的标题。

__________________________________________________________________

题型:单项选择题

食物不仅能改变胃排空速率而影响吸收,而且其他多种因素对药物的吸收产生不同程度、不同性质的影响。除了延缓或减少药物的吸收外,也可能促进药物的吸收或不影响吸收。

受食物影响吸收速率降低的药物是()

A.头孢呋辛

B.吲哚美辛

C.芬维A胺

D.保泰松

E.甲基多巴

F.卡托普利

题型:单项选择题

采用多模光纤的理论最大长度为多少?()

A.100米

B.200米

C.500米

题型:单项选择题

在双缝干涉试验中,两缝间距离为d,双缝在屏幕之间的距离为D(D>d),波长为λ的平行单色光垂直照射到双缝上,屏幕上干涉条纹中相邻暗纹之间的距离为( )。

A.2λD/d

B.λd/D

C.dD/λ

D.λD/d

题型:单项选择题

离心机是依靠的()高速旋转来进行分离的。

A、离心泵

B、电机

C、转鼓

D、外桶

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