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【单选题】
下列情况不可能产生流砂现象的是( )A.
坑内抽水
B.
地下水位以下挖土
C.
土的抗剪强度等于零
D.
动水压力方向向下
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皮皮学刷刷变学霸
举一反三
【单选题】Questions 2 is based on the news report you have just heard.
A.
Their drivers would feel safe after getting used to the automatic devices.
B.
They would be unpopular with drivers who only trust their own skills.
C.
Their increased comfort levels have boosted their sales.
D.
They are not actually as safe as automakers advertise.
【简答题】小冬家养黑兔20只，相当于白兔只数的 4 5 ，小冬家养白兔多少只？
【单选题】Questions 2 is based on the news report you have just heard.
A.
Many countries have not taken measures to create enough jobs.
B.
Few countries know how to address the current economic cr.
C.
Few countries have realized the seriousness of the current cr.
D.
Many countries need support to improve their people's livelihood.
【单选题】Questions 2 is based on the news report you have just heard.
A.
By taking pictures for passers-by.
B.
By selling lemonade and pictures.
C.
By working part time at a hospital.
D.
By asking for help on social media.
【单选题】Questions 2 is based on the news report you have just heard.
A.
It is stable.
B.
It is durable.
C.
It is inexpensive.
D.
It is sophisticated.
【单选题】Questions 2 is based on the news report you have just heard.
A.
It is not easy to improve one's sleep habits.
B.
It is not good for students to play video s.
C.
Students who are better prepared generally get higher scores in examinations.
D.
last-minute preparations for tests may be less effective than sleeping.
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