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【单选题】
下列对某一主题知识归纳，正确的一组是(     )
A.
生活常识
B.
物质鉴别 硬水与软水——观察颜色区别 人体缺钙元素——甲状腺肿大 食盐与亚硝酸钠——品尝味道 氮气与二氧化碳——燃着的木条
C.
安全常识
D.
“一定”与“不一定” 长时间堆放的柴草——要不时翻动 进入陌生的溶洞前——先做灯火实验 有盐和水生成的反应一定是中和反应 浓溶液一定是饱和溶液，稀溶液一定是不饱和溶液
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参考答案：
举一反三
【单选题】指令SFTRP X0 M0 K9 K4的目标操作数是（ ）。
A.
X0
B.
M0
C.
M8-M0
D.
X11-X0
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Call technical support
B.
Help her to fix the machine
C.
Scan the paper
D.
Make a presentation
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Call the supervisor
B.
Buy a new computer
C.
Cancel the meeting
D.
Sign a contract
查看完整题目与答案
【单选题】It is such a small point that it ’ s hardly worth about.
A.
to be troubled
B.
to trouble
C.
troubling
D.
being troubled
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Discussing the tender documents
B.
Having a business dinner
C.
Promoting their company
D.
Demonstrating her new model
查看完整题目与答案
【单选题】It s only about ten ____ walk to the nearest post office
A.
It’s only about ten ____ walk to the nearest post office A.minutes
B.
minute’s
C.
minutes’
D.
minute
查看完整题目与答案
【单选题】—_______? —It ' s about 40 minutes by bike.
A.
How tall is it
B.
How long is it
C.
How far is it
D.
How much is it
查看完整题目与答案
【单选题】并联式混合动力汽车可以提供()工作模式
A.
纯电动模式
B.
纯发动机模式
C.
电动与发动机混合模式
D.
以上三种都是
查看完整题目与答案
【单选题】) — How far is it from Chongqing to Guiyang? — It ’ s about two ride by high-speed train .
A.
hour
B.
hour ’ s
C.
hou rs
D.
hours ’
查看完整题目与答案
【单选题】生产装置使用手持电动工具时必须安装()开关。
A.
漏电保护
B.
过载保护
C.
防爆保护
D.
接地保护
查看完整题目与答案
相关题目：
【单选题】指令SFTRP X0 M0 K9 K4的目标操作数是（ ）。
A.
X0
B.
M0
C.
M8-M0
D.
X11-X0
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Call technical support
B.
Help her to fix the machine
C.
Scan the paper
D.
Make a presentation
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Call the supervisor
B.
Buy a new computer
C.
Cancel the meeting
D.
Sign a contract
查看完整题目与答案
【单选题】It is such a small point that it ’ s hardly worth about.
A.
to be troubled
B.
to trouble
C.
troubling
D.
being troubled
查看完整题目与答案
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Discussing the tender documents
B.
Having a business dinner
C.
Promoting their company
D.
Demonstrating her new model
查看完整题目与答案
【单选题】It s only about ten ____ walk to the nearest post office
A.
It’s only about ten ____ walk to the nearest post office A.minutes
B.
minute’s
C.
minutes’
D.
minute
查看完整题目与答案
【单选题】—_______? —It ' s about 40 minutes by bike.
A.
How tall is it
B.
How long is it
C.
How far is it
D.
How much is it
查看完整题目与答案
【单选题】并联式混合动力汽车可以提供()工作模式
A.
纯电动模式
B.
纯发动机模式
C.
电动与发动机混合模式
D.
以上三种都是
查看完整题目与答案
【单选题】) — How far is it from Chongqing to Guiyang? — It ’ s about two ride by high-speed train .
A.
hour
B.
hour ’ s
C.
hou rs
D.
hours ’
查看完整题目与答案
【单选题】生产装置使用手持电动工具时必须安装()开关。
A.
漏电保护
B.
过载保护
C.
防爆保护
D.
接地保护
查看完整题目与答案
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