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【多选题】
新型冠状病毒的传播途径有哪些?A.
A新型冠状病毒的主要传播途径是经呼吸道飞沫传播,亦可通过接触传播。
B.
B吸入患者或病毒携带者咳嗽、打喷嚏时喷出的呼吸道飞沫;
C.
C眼结膜、鼻粘膜等处沾染患者或病毒携带者的痰液、血液、呕吐物、体液、分泌物等;
D.
D手部沾染患者或病毒携带者的痰液、血液、、呕吐物、体液、分泌物等,或触摸被这些分泌物污染的物品、器具后,再用手直接接触口、眼、鼻等。
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【单选题】影响水泥混凝土抗压强度的因素很多，可能包含： ①灰水比，灰水比越大强度越高； ②骨料种类，采用碎石比采用卵石的强度低； ③同等条件下，水泥强度等级越高，混凝土强度越大； ④养生温度越高，强度越大； ⑤试验试件尺寸越大，强度越高； 上面描述的水泥混凝土抗压强度的影响因素中错误的有（）处。
A.
1
B.
2
C.
3
D.
4
【单选题】Everybody says Rebecca and John is a perfect match; no one has ever known __________ couple.
A.
a better
B.
the better
C.
a best
D.
the best
【简答题】Paragraph 9: The central questions of this debate are: "What is the major purpose of attending university?" and "Who should be responsible for the cost?" For me, the answer has always been that my pur...
【判断题】every debater in the public forum debate has the opportunity to ask and answer questions.
A.
正确
B.
错误
【判断题】The moral and ethical questions raised by performing experiments on animals are subject to debate.
A.
正确
B.
错误
【简答题】Questions 32 to 35 are based on the following passage. There has been an ongoing debate on whether school uniforms should be completelyabolished in all schools, both private and public. Despite both p...
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