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【单选题】
有关甲状腺血液供应的描述,下列选项错误的是
A.
甲状腺上动脉来源于颈外动脉
B.
甲状腺下动脉起自锁骨下动脉
C.
甲状腺上静脉回流至颈内静脉
D.
甲状腺中静脉回流至颈内静脉
E.
甲状腺下静脉回流至颈外静脉
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举一反三
【单选题】What was Xiaoli browsing online?
A.
She was watching the news online.
B.
She was watching the ads online.
【单选题】Best of all, with online education, we can stick to our jobs and at the same time study and _______the latest knowledge.
A.
absorb
B.
entertain
C.
reflect
D.
attract
【单选题】Among the class, economy is the cheapest type of seats in a plane.
A.
经济舱是飞机席位中最便宜的。
B.
头等舱是最好和最贵的席位。
C.
做飞机是最经济的。
【单选题】What will be barriers for the development of online bill pay?
A.
Online bill is not safe enough.
B.
The technology is not mature.
C.
Online-bill-pay services charge fee.
D.
Most companies are not willing to accept it.
【简答题】下列不属于生态系统功能的是()。
【简答题】What challenges are the online retailers now faced with?
【简答题】On hearing the news, I ____________ (忍不住笑起来) and spread it among the class.
【简答题】What is the online population of Japan?
【单选题】下列不属于生态系统功能的是
A.
能量流动
B.
物质循环
C.
生态演替
D.
信息传递
【判断题】Among  the  class,  economy  is  the  cheapest  type of  seats,  while  first  class  is  the  best  and  most expensive  seats.
A.
正确
B.
错误
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