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【单选题】
继承是面向对象编程的一个重要特征，它可降低程序的复杂性并使代码
A.
可读性好
B.
可重用
C.
可跨包访问
D.
运行更安全
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参考答案：
举一反三
【单选题】When the foreign guest arrived, I found him speaking good Chinese. I _______ his speech into Chinese the night before. [     ]
A.
needn't translate
B.
didn't need to translate
C.
needn't have translated
D.
didn't need translating
查看完整题目与答案
【单选题】博来霉素等抗肿瘤抗生素的主要作用机制是( )。
A.
干扰细菌细胞壁合成
B.
抑制细菌蛋白质合成
C.
抑制细菌核酸合成
D.
增加细菌胞浆膜通透性
查看完整题目与答案
【单选题】( )的东巴文是一种兼备表意和表音成分的图画象形文字, 源于宗教典籍兼百科全书的《东巴经》。
A.
白族
B.
傣族
C.
纳西族
D.
哈尼族
查看完整题目与答案
【简答题】用单万向节传递相交轴之间的运动时, 其瞬时角速比______, 平均角速比_____。
查看完整题目与答案
【多选题】What does a room attendant say when she receives the complaint from the guest that his luggage hasn’t arrived?
A.
I am sorry to hear that, I am sure the bellman will send it up to you soon.
B.
I am sorry for bringing you the inconvenience. I will ask about the bellman immediately.
C.
Could you just wait? We are all busy today.
D.
I don’t know who is the one sending you
查看完整题目与答案
【单选题】Most of the guest()when he arrived at the party.
A.
left
B.
was left
C.
have left
D.
had left
查看完整题目与答案
【单选题】求解生产与存储问题时,下列说法正确的是: ( )
A.
状态变量为期初存储量，决策变量为生产量
B.
阶段指标函数是从第k阶段到第n阶段的总成本
C.
过程指标函数是从第k阶段到下一阶段的总成本
D.
状态变量为需求量，决策变量为生产量
查看完整题目与答案
【判断题】东巴文源于纳西族宗教典籍兼百科全书的《洞经音乐》。
A.
正确
B.
错误
查看完整题目与答案
【判断题】东巴文源于纳西族宗教典籍兼百科全书的《东巴经》,由于这种文字由东巴(智者)所掌握,故称东巴文。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Tom’s family was holding a larger evening party. It was to celebrate Tom’s 15th birthday. At about 6 o’clock, Jim ,Tom’s best friends , arrived with a big birthday gift. Tom opened it in front of Jim ...
查看完整题目与答案
相关题目：
【单选题】When the foreign guest arrived, I found him speaking good Chinese. I _______ his speech into Chinese the night before. [     ]
A.
needn't translate
B.
didn't need to translate
C.
needn't have translated
D.
didn't need translating
查看完整题目与答案
【单选题】博来霉素等抗肿瘤抗生素的主要作用机制是( )。
A.
干扰细菌细胞壁合成
B.
抑制细菌蛋白质合成
C.
抑制细菌核酸合成
D.
增加细菌胞浆膜通透性
查看完整题目与答案
【单选题】( )的东巴文是一种兼备表意和表音成分的图画象形文字, 源于宗教典籍兼百科全书的《东巴经》。
A.
白族
B.
傣族
C.
纳西族
D.
哈尼族
查看完整题目与答案
【简答题】用单万向节传递相交轴之间的运动时, 其瞬时角速比______, 平均角速比_____。
查看完整题目与答案
【多选题】What does a room attendant say when she receives the complaint from the guest that his luggage hasn’t arrived?
A.
I am sorry to hear that, I am sure the bellman will send it up to you soon.
B.
I am sorry for bringing you the inconvenience. I will ask about the bellman immediately.
C.
Could you just wait? We are all busy today.
D.
I don’t know who is the one sending you
查看完整题目与答案
【单选题】Most of the guest()when he arrived at the party.
A.
left
B.
was left
C.
have left
D.
had left
查看完整题目与答案
【单选题】求解生产与存储问题时,下列说法正确的是: ( )
A.
状态变量为期初存储量，决策变量为生产量
B.
阶段指标函数是从第k阶段到第n阶段的总成本
C.
过程指标函数是从第k阶段到下一阶段的总成本
D.
状态变量为需求量，决策变量为生产量
查看完整题目与答案
【判断题】东巴文源于纳西族宗教典籍兼百科全书的《洞经音乐》。
A.
正确
B.
错误
查看完整题目与答案
【判断题】东巴文源于纳西族宗教典籍兼百科全书的《东巴经》,由于这种文字由东巴(智者)所掌握,故称东巴文。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Tom’s family was holding a larger evening party. It was to celebrate Tom’s 15th birthday. At about 6 o’clock, Jim ,Tom’s best friends , arrived with a big birthday gift. Tom opened it in front of Jim ...
查看完整题目与答案
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