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【简答题】
标识、标志和( )主要用于数据包的分片。
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反馈参考答案：
举一反三
【简答题】以D为角的徵调式音阶中,宫音是:
【单选题】During the second stage, if the family wanted to consume new goods and services, they had to enter the marketplace ______.
A.
as wage earners
B.
both as manufacturers and consumers
C.
both as workers and purchasers
D.
as customers
【单选题】Studies show that people with high self-esteem are less likely to be depressed anxious or lonely than ___________ with low self-esteem.
A.
that
B.
these
C.
those
D.
ones
【单选题】听力原文： Current studies show that what goes on labels is an important consideration for manufacturers, since more than seventy percent of shoppers read food labels when considering whether to buy a prod...
A.
Less than 68%.
B.
About 50%.
C.
Over 70%.
D.
Around 45%.
【单选题】According to the second paragraph, which of the following is NOT true?
A.
The first stage of a multistage rocket consists of rocket engines that provide a large amount of force.
B.
The first stage lifts the entire launch vehicle off the launch pad and into the first part of the flight.
C.
After its engines use up its fuel, the first stage part of the rocket separates from the rest of the launch vehicle and falls to the space.
D.
The entire launch vehicle includes its load of fuel, the rocket body, and the satellite.
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