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【判断题】
女性体温在月经期和排卵前期较低,排卵日最低,排卵后体温升高。
A.
正确
B.
错误
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【单选题】温度升高到 ( )以上,燃料开始发生热解。
A.
100〜150°C
B.
150°C以上
C.
1200〜1400°C
D.
800°C以上
【判断题】概率为1的事件与任意事件相互独立。
A.
正确
B.
错误
【简答题】It is important for us to know how to stay safe while traving in foreign countries. We've all heard the stories of travelers having their wallets stolen or finding themsleves in the wrong part of town...
【单选题】设随机事件A与B相互独立,已知只有A发生的概率和只有B发生的概率都是1/4,则P(A)=()
A.
1/6
B.
1/5
C.
1/3
D.
1/2
【多选题】Which of the following sentences are proper to describe duty-free shopping on the flight when travelling abroad?
A.
browsing the duty-free shooping collection online and make an order in advance
B.
the duty-free goods you ordered will be delivered to the flight or the arriving airport.
C.
select any duty-free items on the flight and get them inmediately
D.
be forbidden to go duty-free shopping on the flight
【简答题】It is important for us to know how to stay safe while traveling in foreign countries. We’ve all heard the stories of travelers having their wallets stolen or finding themselves in the wrong part of to...
【简答题】It is important for us to know how to stay safe while traveling in foreign countries. We ’ ve all heard the stories of travelers having their wallets( 钱包 ) stolen or finding themselves in the wrong pa...
【判断题】使用泄露检测仪检测时,探针和探头不应直接接触带电物体。
A.
正确
B.
错误
【单选题】When shopping abroad, you are advised to ________.
A.
use online services
B.
use a credit card
C.
pay by check
D.
pay in cash
【判断题】概率为 1 的事件与任意事件相互独立 .
A.
正确
B.
错误
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