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【单选题】
硬水和软水的本质区别是( )。A.
硬水浑浊,软水澄清
B.
硬水含杂质多,软水含杂质少
C.
硬水是不纯净水,软水是纯净水
D.
硬水含有较多的可溶钙、镁化合物,软水不含或含较少的可溶性钙镁化合物
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举一反三
【单选题】If a defendant pleads ( ), she neither admits nor denies that she committed the crime.
A.
g uilty
B.
no guilty
C.
n ula bona
D.
nolo contendere
【单选题】P68. 下列过程的功能是:从键盘输入一个大于2的整数,输出小于该整数的最大质数. 例如,输入20,则输出19,输入10,则输出7. Private Sub Command1_Click() Dim x,k As Integer,flag As Boolean x=Val(InputBox("请输入一个大于2的整数")) flag=True Do While x>2 For k=2 To Sqr(...
A.
k=k+1
B.
x=x-1
C.
x=x/k
D.
k=k-1
【单选题】听力原文：M: Welcome hack. How was your trip? W: Well, the trip was worth neither the time nor the money. I should have stayed at home. Q: What does the woman feel about the trip? (18)
A.
The trip was worth both the time and the money.
B.
The trip was not worth both the time and the money.
C.
She enjoyed her trip very much.
D.
She wanted to stay at home.
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