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【判断题】
国土安全是指领土完整、国家统一、海洋权益及边疆边境不受侵犯或免受威胁的状态。
A.
正确
B.
错误
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举一反三
【单选题】According to the professor, what is the disadvantage of sitting on the lawn?
A.
The lawn is not clean.
B.
The lawn is usually very crowded.
C.
The setting isn't very pretty.
D.
The audience might get wet.
【单选题】The market for lawn services is perfectly competitive. Larry's Lawn Service cannot increase its total revenue by raising its price because ________.
A.
Larry's supply of lawn services is perfectly inelastic
B.
the demand for Larry's services is perfectly inelastic
C.
Larry's supply of lawn services is inelastic
D.
the demand for Larry's services is perfectly elastic
【单选题】下面代码实现的功能描述为 def fact(n): if n == 0: return 1 else: return n * fact(n - 1) num = eval(input("Please enter an integer: ")) print(fact(abs(int(num))))
A.
接受用户输入的整数num,输出num的阶乘值
B.
接受用户输入的整数num,判断num是否是素数并输出结论
C.
接受用户输入的整数num,判断num是否是整数并输出结论
D.
接受用户输入的整数num,判断num是否是水仙花数
【单选题】下面代码实现的功能描述为deffact(n):ifn==0:return1else:returnn*fact(n-1)num=eval(input("请输入一个整数:"))print(fact(abs(int(num))))
A.
接受用户输入的整数N,判断N是否是素数并输出结论
B.
接受用户输入的整数N,输出N的阶乘值
C.
接受用户输入的整数N,判断N是否是水仙花数
D.
接受用户输入的整数N,判断N是否是完数并输出结论
【单选题】According to the speaker, what is the disadvantage of sitting on the lawn?
A.
The lawn is not clean.
B.
The lawn is usually very crowded.
C.
The setting isn't very pretty.
D.
The audience might get wet.
【判断题】切削用量三要素中,对切削热影响最大的是切削速度。
A.
正确
B.
错误
【简答题】Lawn tennis was introduced to the United States in .
【单选题】It is expected that there are 4 million robot vacuum cleaners and lawn mowers in ______ .
A.
2002
B.
2003
C.
2004
D.
2005
【单选题】下面代码实现的功能描述为:
A.
接受用户输入的整数N,判断N是否是水仙花数
B.
接受用户输入的整数N,判断N是否是完数并输出结论
C.
接受用户输入的整数N,判断N是否是素数并输出结论
D.
接受用户输入的整数N,输出N的阶乘值
【单选题】核糖体的E位点是:
A.
真核mRNA加工位点
B.
tRNA离开原核生物核糖体的位点
C.
核糖体中受EcoRI限制的位点
D.
电化学电势驱动转运的位点
E.
tRNA识别原核生物核糖体的位点
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