在下列各组数据中,不能作为直角三角形的三边边长的是( ) A.3,4,6 B.7

题型:选择题

问题:

在下列各组数据中,不能作为直角三角形的三边边长的是(  )

A.3,4,6

B.7,24,25

C.6,8,10

D.9,12,15

考点:勾股定理
题型:选择题

高压电缆最内层的结构是

A.保护层

B.半导体层

C.金属屏蔽层

D.高压绝缘层

E.导电芯线

题型:选择题

.

第二节根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

W:Mrs. Everett is expecting you, Mr. Brown. She’ll be with you in a few minutes.

M:Fine

W:Can I take your coat?

M:Yes, Please. Here you are.

W:       61         .

M:No thanks. I’ve been sitting for the last three hours, and I’d like to strech my legs.

W:Can I get you something to drink----coffee, tea or a cold drink?

M:That would be very nice.      62     .

W:Yes, certainly, Mr. Brown.      63      .

M:White with one sugar.

W:      64      .

M:Thank you , but it’s not necessary. I can walk easily.

W:      65      .

M:Thanks.

A.Here’s your coffee, Mr. Brown.

B.Would you like something to read?

C.How do you take it ?

D.Let me show you in . E.Could I have a cup of coffee, please?

F.Would you like to take a seat while you’re waiting?

G.Shall I call a taxi to take you round there after your meeting with Mrs. Everett?

题型:选择题

某公司向美国出口一批塑料玩具,报检时不需提供( )。

A.合同、发票、装箱单

B.出口玩具质量许可证

C.出境货物运输包装使用签定结果单

D.出境货物运输包装性能检验结果单

题型:选择题

以下属于乙类传染病的一组疾病是()。

A.鼠疫、霍乱

B.麻风、麻疹

C.麻疹、风疹

D.人感染高致病性禽流感、麻疹

E.人感染高致病性禽流感、麻风

题型:选择题

每个手机号码最多可以对应签约()个账号,每个账号最多对应签约()个手机号码。

A.3、3

B.3、2

C.2、3

D.5、3

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