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【单选题】
下列关于胸膜腔叙述,错误的是A.
腔内呈负压
B.
有少量滑液
C.
左、右胸膜腔不相通
D.
胸膜腔也叫胸腔
E.
脏、壁胸膜共同围成胸膜腔
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】设 （ 是虚数单位），则 = ．
【简答题】设 ， ，则 的值是____ .
【单选题】If you have several registered accounts for payment, the first link that you should click is______.
A.
Select Payment Method menu
B.
Account Overview summary
C.
the 'Account Number' menu
D.
the 'Pay Now' link
【单选题】Which of the following is the right order to send an e-mail? ① Click on 'Send'. ② Click on 'Write a letter'. ③ Click on 'To'. ④ Write your e-mail. ⑤ Click on 'Subject'. [ ]
A.
①, ②, ③, ④, ⑤
B.
②, ③, ⑤, ④, ①
C.
②, ④, ③, ①, ⑤
D.
④, ③, ⑤, ②, ①,
【简答题】．设a= ，则 大小关系是__ _ __
【单选题】you decide not to receive our information via email any longer, just click the link below to be removed from our list.
A.
Should
B.
Must
C.
Could
D.
Would
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