一个长2毫米的零件画在图纸上长是1分米,这张图纸的比例尺是50:1.______

题型:解答题

问题:

一个长2毫米的零件画在图纸上长是1分米,这张图纸的比例尺是50:1.______.

考点:比例尺
题型:解答题

阅读理解。

Many Chinese students think American students enjoy more freedom than them at school. But American

schools also have their rules. If the students break the rules, they will get punishment, too. On the first

day of a new term, 128 students of Morton High School were sent home for wearing the wrong clothes.

There are altogether 1,200 students in the school. Usually only 20 students break the school dress rule

every day. So the headmaster Therea Mayerik said it was the worst new term she had ever seen. At

Morton High School, students’favorite clothing such as baggy(宽大的)trousers, low-    hecked shirts

and tank tops(紧身短背心)are not allowed in classrooms. Some students think they have the right to

choose what to wear , but the headmaster doesn’t think so. “I’d be supportive if  half the school was

sent home, because 99% will get the message that our school is for education. “Freedom” does not mean

“free of restrictions(约束)”. That is to say there is no total freedom in the world, no matter in the USA or in China.

1.ManyChinese students think that____.

A. American students are very free at school          

B. American students are not so clever as them          

C. American students don't love their school at all

 2. 128 students of Morton High School were sent home for       .

A. not finishing their homework        

B. being late for school        

C. not wearing the right clothes

 3. Some students in Morton High School think that they have the right to       .

A. decide when to go to school          

B. choose what to wear        

C. eat and drink in class

4. What does the underlined word “supportive” mean in Chinese?

A. 高兴的    

B. 支持的    

C. 害怕的

5. What’s the writer’s attitude(态度)to the school dress rule?

A. Agree.            

B. Disagree(不同意).       

C. Not sure.

题型:解答题


(1)在上述稳定状态时,导体棒ab中的电流I和磁感应强度B的大小;

(2)如果导体棒从静止释放沿导轨下滑x距离后运动达到稳定状态,在这一过程中回路产生的电热是多少?

(3)断开开关S后,导体棒沿导轨下滑一段距离后,通过导体棒ab的电量为q,求这段距离是多少?

题型:解答题

A公司因业务关系,向其开户银行甲银行申请办理了收款人为B公司的一张银行承兑汇票,出票金额计人民币50万元整,A公司申请办理的银行承兑汇票应支付的手续费是多少?()

A、300元

B、200元

C、250元

D、150元

题型:解答题

某城市建设工程,施工承包商在开始施工之前,准备充足的资金、物资等,当一切准备条件都满足时,为了在年底之前完成本项目工程,负责人于是自行组织开工,在施工过程中,由于产生了许多固体废弃物、泥浆水等,负责人觉得必须妥善处理这些能对环境造成危害的污染源,于是制定了详细的施工方案,希望减少对环境的污染。

建设工程施工由于受技术、经济条件限制对环境污染不能控制在规定范围内的,建设单位应当会同( )事先报请有关部门批准。

A.供货单位

B.设计单位

C.工程咨询单位

D.施工单位

题型:解答题

现代建筑工程项目风险大的主要原因是()。

A.工程的参加单位多

B.缺少设备和劳动力

C.项目实施受外界环境的影响大

D.工程规模大、技术新颖、结构复杂

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