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【多选题】
属于信号杂质的是A.
砷盐
B.
重金属杂质
C.
氯化物
D.
硫酸盐
E.
酸碱杂质
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举一反三
【简答题】A．She had to wait even longer than the man did to have her car inspected. B．The man should have had his car inspected earlier. C．The auto inspection center will be closed at the end of the month. D．Th...
【单选题】下面语句中,把变量fptr说明为是一个文件型指针的是( )。
A.
FILE *fptr;
B.
FILE fptr;
C.
file *fptr;
D.
file fptr;
【单选题】Jane opened the door. There ______ she had never seen before.
A.
a girl did stand
B.
stood a girl
C.
did a girl stand
D.
a girl stood
【简答题】A．She had to wait even longer than the man did to have her car inspected. B．The man should have had his car inspected earlier. C．The auto inspection center will be closed at the end of the month. D．Th...
【单选题】Having practiced so many times, I feel very _____ of my ability to deliver the presentationsuccessfully.
A.
enthusiastic
B.
confident
C.
incredible
D.
satisified
【单选题】How did Ann feel after she had opened her eyes?
A.
Very much pleased.
B.
Very much frightened.
C.
Greatly attracted.
D.
Greatly surprised.
【简答题】Having practiced for so long, the New York baseball team _________________________ of winning the World Series this year.
【单选题】Mary opened the door. There______ she had never seen before.
A.
a boy did stand
B.
did a boy stand
C.
a boy stood
D.
stood a boy
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