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【简答题】
什么是PV?什么是UV?简述PV和UV的关系
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举一反三
【单选题】Mario used to be short, ______? [     ]
A.
doesn't he
B.
wasn't he
C.
isn't he
D.
didn't he
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【单选题】He's been dead for 5 years, ______? [     ]
A.
isn't he
B.
wasn't he
C.
didn't he
D.
hasn't he
查看完整题目与答案
【单选题】技术矛盾是指( )。
A.
改进系统的一个参数却导致另一个参数恶化，是同一系统中不同参数产生的矛盾
B.
一种作用同时导致有害和无害两种结果
C.
系统中多个参数之间的矛盾
D.
发明过程中产生的矛盾
查看完整题目与答案
【单选题】被誉为“豆中之王”、“植物肉”、“绿色的牛奶”的是( )。
A.
大豆
B.
红豆
C.
绿豆
D.
蚕豆
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【单选题】若有定义: int a=11; float x=2.8, y=4.9;则表达式x+a%3*(int)(x+y)%-5/4的值是( )
A.
2.800000
B.
2.750000
C.
3.800000
D.
4.900000
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【单选题】He’s fed the dog and the cat, _________? [     ]
A.
doesn’t he
B.
isn’t he
C.
wasn’t he
D.
hasn’t he
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【单选题】He isn't a policeman, _______? [     ]
A.
isn't he
B.
don't he
C.
is he
D.
does he
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【简答题】画三视图时,保证宽相等的方法有用()、用().
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【单选题】He is young, ______? [     ]
A.
hasn't he
B.
doesn't he
C.
isn't he
D.
wasn't he
查看完整题目与答案
【单选题】He was dissmissed. The reason is _____ he was careless and irresponsible.
A.
that
B.
why
C.
which
D.
because
查看完整题目与答案
相关题目：
【单选题】Mario used to be short, ______? [     ]
A.
doesn't he
B.
wasn't he
C.
isn't he
D.
didn't he
查看完整题目与答案
【单选题】He's been dead for 5 years, ______? [     ]
A.
isn't he
B.
wasn't he
C.
didn't he
D.
hasn't he
查看完整题目与答案
【单选题】技术矛盾是指( )。
A.
改进系统的一个参数却导致另一个参数恶化，是同一系统中不同参数产生的矛盾
B.
一种作用同时导致有害和无害两种结果
C.
系统中多个参数之间的矛盾
D.
发明过程中产生的矛盾
查看完整题目与答案
【单选题】被誉为“豆中之王”、“植物肉”、“绿色的牛奶”的是( )。
A.
大豆
B.
红豆
C.
绿豆
D.
蚕豆
查看完整题目与答案
【单选题】若有定义: int a=11; float x=2.8, y=4.9;则表达式x+a%3*(int)(x+y)%-5/4的值是( )
A.
2.800000
B.
2.750000
C.
3.800000
D.
4.900000
查看完整题目与答案
【单选题】He’s fed the dog and the cat, _________? [     ]
A.
doesn’t he
B.
isn’t he
C.
wasn’t he
D.
hasn’t he
查看完整题目与答案
【单选题】He isn't a policeman, _______? [     ]
A.
isn't he
B.
don't he
C.
is he
D.
does he
查看完整题目与答案
【简答题】画三视图时,保证宽相等的方法有用()、用().
查看完整题目与答案
【单选题】He is young, ______? [     ]
A.
hasn't he
B.
doesn't he
C.
isn't he
D.
wasn't he
查看完整题目与答案
【单选题】He was dissmissed. The reason is _____ he was careless and irresponsible.
A.
that
B.
why
C.
which
D.
because
查看完整题目与答案