单选题A potential factor affecting scientists in their efforts to control the overgrowth of world population is that _____.A state administrators do not have confidence in their workB humanists usually cannot cooperate well with themC they haven’t been train

题目

单选题

A potential factor affecting scientists in their efforts to control the overgrowth of world population is that _____.

state administrators do not have confidence in their work

humanists usually cannot cooperate well with them

they haven’t been trained to consider social effects of their work

they do not have enough time to tackle the problem

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相似问题和答案

第1题：

You seldom have to do the cooking,______?

A. have you

B. haven't you

C. do you

D. don't you

正确答案：C

15．答案为C 你很少做饭，不是吗?seldom“很少……”，带否定意味，因此反意疑问句用肯定形式。而且主句中have to为情态动词，不是实义动词。

第2题：

“if they hadn’t gone on vacation, their house _______________ broken into.“

A. haven’t had been

B. hadn’t been

C. won’t have been

D. wouldn’t have been

参考答案：D

第3题：

You have been to Tibet,( )? I was told that the snow－covered mountains were very beautiful.

A. have you

B. haven’t you

C. don’t you

D. are you

参考答案：B

第4题：

Which of the following statements is NOT true?

A) World population is increasing at a rate of 150 per minute.

B) Lower death rates also contribute to world population growth.

C) The population of Columbia has been doubling every year for 21 years.

D) The United States is usually doubling its population about every 87 years.

正确答案：C
答案：C
[试题分析] 事实判断题。
[详细解答] 根据第三段第一句World population is increasing at a rate of 9,000 per hour．可判断A世界人口每分钟增加150人正确；根据该段第二句This is not only due to higher birth rates，but to lower death rates as well．可判断B论断正确；而由第四段的Some countries，such as Columbia， Thailand，Morocco，Costa Rica，and the Philippines．are doubling their populations about every twenty-one years可判断， C哥伦比亚人口持续21年每年翻一番的论断混淆了事实，论断错误；D美国人口每87年翻一番可根据第三段第二句The United States is doubling its population about every eighty-seven years一句判断为正确论断。因此，本题答案为C。

第5题：

－－ I haven’t seen you for ages. You haven’t been sick, have you?

A、Me, too.

B、Yes, I haven’t.

C、No. I’ve been in California.

D、What about you?

参考答案：C

第6题：

All flights ( ) because of the snowstorm, we could do nothing but ( ) the train.

A、were cancelled/ to take

B、having been cancelled/ take

C、have been cancelled/ take

D、had been cancelled/ to take

参考答案：C

第7题：

Experiments of this kind ____ in both the U.S. and Europe well before the World War.

A have conducted

B have been conducted

C had conducted

D had been conducted

参考答案：D

第8题：

The（）process ascertains which risks have the potential of affecting the project and documenting the risks’characteristics． A．Risk Identification B．Quantitative Risk Analysis C．Qualitative Risk Analysis D．Risk Monitoring and Control

正确答案：A
风险识别(RiskIdentification)是确定何种风险可能会对项目产生影响，并将这些风险的特征形成文档。

第9题：

It () to have been ready last week.But you haven't done it.

A.supposes

B.is supposed

C.was supposed

D.supposed

正确答案：C
解析：be supposed to 意为“应该”，表示一种责任和义务。句中有表示过去的时间短语last week, 所以应该选C.

第10题：

The______process ascertains which risks have the potential Of affecting the proect and documenting the risks' characteristics．

A．Risk Identification

B．Quantitative Risk Analysis

C．Qualitative Risk Analysis

D．Risk Monitoring and Control

正确答案：A
解析：项目风险管理主要包括风险管理计划编制、风险识别、定性风险分析、定量风险分析、风险应对计划编制和风险监控。其中，风险识别过程是确定哪些风险可能会对项目产生影响，并将这些风险的特征形成文档。选项A是风险识别，选项B是定量风险分析，选项C是定性风险分析，选项D是风险监控。

单选题A potential factor affecting scientists in their efforts to control the overgrowth of world population is that _____.A state administrators do not have confidence in their workB humanists usually cannot cooperate well with themC they haven’t been train

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