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【单选题】
在 Windows7 中,用于在已打开的程序窗口之间进行切换的快捷键是()。A.
【 Ctrl+Tab 】
B.
【 Shift+Tab 】
C.
【 Alt+Tab 】
D.
【 Shift+Ctrl 】
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【简答题】This was the first time that Mike Bloomberg appeared on a live television debate stage alongside the other five main Democratic candidates, and his arrival proved to be 10 .
【简答题】简述生殖激素的作用特点。
【单选题】关于十二指肠引流液下列哪种说法是的?( )
A.
了解胰腺外分泌功能
B.
可了解胆道有无梗阻
C.
可了解肝胆系统有无炎症、结石、肿瘤等
D.
对部分胆道疾患有治疗作用
E.
可了解肝脏功能
【单选题】杨某是自由撰稿人，2017年杨某的一篇小说在某国发表，取得稿酬折合人民币40000元，并按该国税法规定缴纳了个人所得税4500元;当年，杨某在国内将另一作品的手稿原件公开拍卖，取得拍卖收入50000元。2017年杨某应缴纳个人所得税( )元。
A.
8000
B.
9900
C.
20000
D.
21900
【单选题】The first debate was____________to have been held on Tuesday.
A.
supposed
B.
exchanged
【单选题】The first debate was____________to have been held on Tuesday.
A.
supposed
B.
exchanged
C.
made
D.
informed
【单选题】The first debate_____ have been held on Tuesday.
A.
was supposed to
B.
was sought to
C.
was made to
D.
was happened to
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