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分厂使用的一种清水泵，型号为：IS80-65-160，其字母和数字分别代表什么意义是什么？

答案

参考答案：

IS—国际标准单级单吸清水离心泵；

80—泵的入口直径为80mm；

65—泵的出口直径为65mm；

160—泵的叶轮直径为160mm。

单项选择题

在贷款发放的原则中，（）原则是指在中长期贷款发放过程中，银行应按照完成工程量的多少进行付款。

A.进度放款

B.计划、比例放款

C.等比例支用

D.资本金足额
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单项选择题

A new study finds that blacks on death row (1) of killing whites are more likely to be executed than whites who kill minorities. It also concludes that blacks who kill (2) minorities are (3) likely to be executed than blacks who kill whites. For example, there is more than a twofold greater risk that an African-American who killed a white will be executed than a white person who kills a (4) victim. A Hispanic is at least 1.4 (5) more likely to be executed (6) such an offender kills a white.

The researchers of the study believe that there are two (7) explanations.. First, prosecutors often win (8) office if they win well-publicized cases. When a black kills a white, such killings gets more (9) and this idea can be (10) by many famous cases. (11) , the court judges at the state level are often (12) to elections, called retention elections. Retention election or judicial retention within the United States court system, is a periodic process, in which the voter (13) approval or disapproval for the judges presently (14) their position, and a judge can be removed from the position if the (15) of the citizens vote him or her out. Just as the researchers (16) out, death penalty is (17) political.

The findings of the study, in short, show that American justice systems clearly (18) white lives more than those of blacks or Hispanics. The researchers also say their findings (19) serious doubts about (20) that the U.S. criminal justice system is colorblind.

3（）

A.even

B.same

C.less

D.more
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