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【单选题】
—Excuse me, could you please tell me if the sports meeting ________ on time? —Hard to say. If it ________ tomorrow, we’ll have to put it off.A.
will hold; rains
B.
will be held; rains
C.
will be held; will rain
D.
holds; will rain
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【单选题】红斑反应的机理不包括
A.
紫外线使血管内皮细胞变性，导致激肽的产生，引起血管扩张
B.
紫外线破坏棘细胞的溶酶体膜，释放出水解酶，使血管扩张，形成红斑
C.
紫外线使组胺酸分解，形成组胺，继而血管扩张，皮肤充血，出现红斑反应
D.
紫外线可以激活表皮下方的黑色素细胞，使黑色素细胞增生、黑色素小体增多
E.
紫外线照射后皮肤内有前列腺素合成，前列腺素对扩张血管的组胺和激肽有调节作用
【单选题】For many students who study online _________ school closure (关闭) caused by the COVID-19 outbreak, home turns into a classroom, and parents enter into the role of teaching assistant or learning partner...
A.
because
B.
due to
C.
result from
【简答题】单片机的最小应用系统除了单片机和电源外,还包括_________和 _________。
【简答题】除了单片机和电源外,单片机最小系统还包括 电路和 电路。
【简答题】Health experts prepared to deal with corona virus epidemic The World Health Organization (WHO) said on Monday that the world has nearly 17,400 confirmed cases of the Novel Coronavirus. More than 99 pe...
【单选题】For many students who study online _________ school closure caused by the COVID-19 outbreak, home turns into a classroom, and parents enter into the role of teaching assistant or learning partner whet...
A.
because
B.
due to
C.
result from
【简答题】At East China University of Science and Technology, students who finish their food in the dining hall can get a coupon(优惠券) when they return their tray(餐盘). They can exchange coupons for small gifts, ...
【单选题】Who prepared the draft of the Declaration of Independence?
A.
.John Adams
B.
Thomas Jefferson
C.
Benjamin Franklin
D.
John Hancock
【简答题】完形填空（共10小题，计10分） Once there was a king who told some of his people to dig a pond (池子).The king then told his people that one person 16 each family had to bring a glass of milk during the night and put...
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