起重机机构运动状态改变时,产生的惯性载荷称()A、动力载荷 B、弹性载荷 C、惯性载荷

题型:单项选择题

问题:

起重机机构运动状态改变时,产生的惯性载荷称()

A、动力载荷

B、弹性载荷

C、惯性载荷

考点:电动装卸机械修理工电动装卸机械修理工高级电动装卸机械修理工高级题库
题型:单项选择题

Cara and Ben are twins(双胞胎). They are ten. This is their room. It’s a nice room. Two beds are in the room. The yellow bed is Cara’s and that green one is Ben’s. The twins have one desk and two chairs . Cara’s

English book is on his bed. Ben’s CD is on his chair. Their clock and pencil boxes are on the desk . Their schoolbags are on the chairs.

小题1: Cara and Ben are ______. 

A.sisters

B.twins

C.friends

D.brotherandsister小题2:______ are in their room. 

A.Twochairsandonedesk

B.Twodesksandonechair

C.Twochairsandtwodesks

D.Onedeskandonechair小题3: Cara’s _______ is yellow and Ben’s ______ is green. 

A.chair;bed

B.chair;chair

C.bed;chair

D.bed;bed小题4:Cara’s English book is _______. 

A.onherbed

B.onBen’sbed

C.onthechair

D.onthedesk小题5: What are on the desk? 

A.Aclockandabook

B.Pencilboxesandaschoolbag

C.Apenandabook

D.Aclockandpencilboxes

题型:单项选择题

按照我国现行规定,投标保证金有效期应超过投标有效期()天。

A.28 

B.30 

C.56 

D.60

题型:单项选择题

肺炎链球菌摄取编码荚膜的基因片段,可通过的方式为

A.转化
B.接合
C.转导
D.溶原性转换
E.原生质体融合

题型:单项选择题

远期汇价主要取决于相关两国的(),一般而言,高息货币的远期汇率表现为贴水,低息货币的远期汇率表现为升水。

A.汇率差异

B.GDP差异

C.外汇储备差异

D.利率差异

题型:单项选择题

Commenting on the report to China Daily, the economist said, “It is beyond   

      that China will play a more important role in the world economy as the US and Japan experience setbacks.”

A.compare

B.doubt

C.recognition

D.expression

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