由正投影得到物体的投影图()。 A.只能表达原形 B.只能表达大小 C.不能表达原形

题型:单项选择题

问题:

由正投影得到物体的投影图()。

A.只能表达原形

B.只能表达大小

C.不能表达原形和大小

D.能表达原形和大小

考点:机械维修工考试机械维修工考试题库
题型:单项选择题

Rupert Brooke

Rupert Brooke, one of the leading poets of his generation, was

renowned as a romantic, unlike many of his contemporaries who        1. ______

specialized in writing about the pointless of war.             2. ______

He was born in 1887, the son of a House Master at Rugby,

where Rupert attended both the preparatory and main schools. When

he went up to Cambridge in 1906 as a classics scholar, he fared badly    3. ______

in his examinations as his interests laid in literature and theater.    4. ______

During his time at Cambridge, his wit and good looks ensured his

place as a member of the elite circle of intellectuals study there.     5. ______

After university he went to study German in Munich, falling in

love with a sculptress there and working feverishly to begin his first   6. ______

volume of poetry, which produced a profit within a few weeks of its

publication in 1911.

With his early success, Brooke often felt unsettled as he          7. ______

struggled to come to term with the underlying contradictions in his     8. ______

character. Many times his free spirits and bohemianism conflicted      9. ______

directly with the innate Puritanism he inherited from his mother.      10. ______

Because of these he would sometimes distance himself from his

fellows and adopt an irrational suspicious attitude towards them.

7()

题型:单项选择题

世界上现存最早的有明确时间记载的印刷品是 [ ]

A.《金刚经》

B.《诗经》

C.《丹经》

D.《姓氏录》

题型:单项选择题

通过肾上腺素激发试验,可了解()

A.粒细胞储备池的功能

B.边缘池粒细胞的数量

C.粒细胞从边缘池进入循环池的多少

D.粒细胞循环池的数量

E.对骨髓受损引起粒细胞减少的病人有诊断价值

题型:单项选择题

孕妇于妊娠早期感染风疹病毒,可引起胎儿感染,产生多种畸形,称为先天性风疹综合征,其诊断条件,以下哪项是错误的()

A.妊娠早期母亲可能患风疹或有明确风疹接触史

B.出生后婴儿血中有抗风疹特异性IgM

C.新生儿有一种或几种先天性畸形的表现

D.新生儿体内可分离出风疹病毒

E.出生后婴儿血中有抗风疹特异性IgG

题型:单项选择题

在直流电动机中,电枢的作用是()。

A.将交流电变为直流电

B.实现直流电能和机械能之间的转换

C.在气隙中产生磁通

D.将直流电流变为交流电流

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