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【简答题】
分析判断下列命题、推理是否正确,并说明原因 若一个复合命题为真,则其所有的支命题必然为真。
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举一反三
【单选题】– Has the Wuhan-Guangzhou high-speed railway been put into use?。 – Yes. The last train for Guangzhou _________ at seven fifteen in the evening.
A.
has left
B.
leaves
C.
was left
D.
will leave
【单选题】I'll leave Beijing for Guangzhou ____ a week, while my brother will leave Guangzhou for Beijing _
A.
3. I'll leave Beijing for Guangzhou ____ a week, while my brother will leave Guangzhou for Beijing ____ our National Day. A．in, in
B.
after, in
C.
after, after
D.
in, after
【简答题】信息检索的概念,并简述信息检索的基本原理。
【简答题】阅读理解。 The 16th Asian s in 2010 November 12-27 in Guangzhou, China, and Guangzhou is the second Chinese city to get the right to host the Asian s. Beijing had the 11th Asian s in 1990. Ther...
【单选题】下列关于快肌纤维和慢肌纤维描述正确的是( )。
A.
快肌纤维直径小于慢肌纤维，线粒体数量少于慢肌纤维，收缩力量大，有氧代谢能力高，抗疲劳能力弱
B.
快肌纤维直径大于慢肌纤维，线粒体数量少于慢肌纤维，收缩力量大，有氧代谢能力高，抗疲劳能力强
C.
快肌纤维直径大于慢肌纤维，线粒体数量少于慢肌纤维，收缩力量大，无氧代谢能力高，抗疲劳能力弱
D.
快肌纤维直径大于慢肌纤维，线粒体数量多于慢肌纤维，收缩力量小，有氧代谢能力高，抗疲劳能力弱
【单选题】The topic in the sentence “Guangzhou and Shanghai share a lot in common” is__________.
A.
Shanghai
B.
Guangzhou
C.
share a lot in common
D.
Guangzhou and Shanghai
【简答题】These shoes__________in Guangzhou.
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