除日常巡回检查外,还应每隔( )个月对护栏进行定期检查。A.1~2 B.2~4 C

题型:单项选择题

问题:

除日常巡回检查外,还应每隔( )个月对护栏进行定期检查。

A.1~2

B.2~4

C.3~5

D.2~3

考点:安全工程师安全生产技术安全生产技术
题型:单项选择题

图示为一人工种子。下列与人工种子培育过程的有关叙述中不正确的是

[ ]

A.人工种子一般是用离体的植物细胞通过组织培养技术获得

B.胚状体是由愈伤组织分化而成,离体细胞只有形成愈伤组织才能表现出全能性

C.同一批次的人工种子基本上具有相同的基因型

D.胚状体是由未分化的,具有分裂能力的细胞构成

题型:单项选择题

用所给动词的适当形式填空。

1. The children were _____in the ________ story. (interest)

2.  We were all_______ to hear the _______ news. ( excite)

3.  The result of the test was rather ____. He was very ______ at it. ( disappoint)

4.  I've never heard the word ______(use) in spoken English.

5. They often saw the little boy _______(punish) by his step mother.

6.  The only thing I could do was _______ (do)  it alone.

7. She doesn't mind______ (work) over time.

8.  I'11 have the book _______( bring) over to you soon.

9.  Besides ________(read) ,he is fond of ____ (dance)  and ____ (skate).

10. The meeting ______ (take place) next week is very important.

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女性,25岁,诉经常失眠,晚上10点半就寝,往往到午夜两三点才迷迷糊糊入睡,有时甚至到天亮还不能入睡,可选用

A.苯巴比妥

B.硫喷妥钠

C.艾司唑仑

D.氯丙嗪

E.吗啡

题型:单项选择题

关于细菌营养分型不正确的叙述是()。

A.异营菌是必须供给复杂的有机物质才能生长繁殖的细菌

B.寄生菌一般都是寄生于活的动植物体内,从宿主体内的有机物质中获得营养属于异养菌

C.腐生菌是以无生命的有机物质作用营养物质,它不属异营菌

D.自营菌是具有完善的酶系统,可以合成原生质的细菌

E.自营菌为非致病菌

题型:单项选择题

疳证的主要病机变化是脾胃虚损、().

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