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【单选题】
截至2019年10月,中美经贸高级别磋商经过( )轮谈判,取得实质性进展。
A.
11轮
B.
12轮
C.
13轮
D.
14轮
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参考答案:
举一反三
【单选题】录像机的电源系统的功能是将()的市电转换为合适的电压。
A.
280V,60Hz
B.
220V,50Hz
C.
380V,50Hz
D.
220V,60Hz
【单选题】机油呈褐色或乳白色并伴有泡沫,说明机油中( )。
A.
含有较多的汽油
B.
含有较多的焦油
C.
含有较多的柴油
D.
含有较多的水
【单选题】He is opposed (to) the project (for the reason) why it is not (feasible) (for the time being).
A.
to
B.
for the reason
C.
feasible
D.
for the time being
【单选题】对生活中的一些现象解释不正确的是(  )
A.
厨房中没有抽油烟机,炒菜时房间内会闻到很大的油烟味,是因为分子在不断运动
B.
某同学用肥皂水洗衣服时,发现泡沫少浮渣多,是因为所用的水为硬水
C.
蜡烛燃烧产生黑烟,说明石蜡中含有单质碳
D.
膨化食品开封一段时间后不再松脆,是因为吸收了空气中的水蒸气
【单选题】For the time bei ng , we'll let you stay on the job.
A.
as time as goes by
B.
temporarily
C.
premanently
D.
for all the time
【单选题】S1:Is your washing finished?S2:It will be soon. It's now in the spin cycle.S1:I saw someone rinsing something under running water. Isn't that wasteful?S2:Yes.Even though we can get as much water as we...
A.
Rinse the clothes under running water.
B.
Use a little strong detergent.
C.
Use a lot of strong detergent
D.
Wash the clothes by hand.
【单选题】S1:Is your washing finished?S2:It will be soon. It's now in the spin cycle.S1:I saw someone rinsing something under running water. Isn't that wasteful?S2:Yes.Even though we can get as much water as we...
A.
On the bridge.
B.
In the mess room.
C.
In the laundry.
D.
In the crew's cabin.
【单选题】图解中的运动方向是以图中人的躯干姿势为准,并且随着 所处的位置变化而变化。
A.
头部
B.
躯干姿势
C.
上肢
D.
下肢
【单选题】钢中含有少量的碳、硅、锰、硫、磷、氧和氮等元素,其中对钢的强度、硬度等性质起决定性影响的是 ( )。
A.
B.
C.
D.
【判断题】机油中有泡沫说明机油中含有水
A.
正确
B.
错误
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