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【单选题】
假设用户名和口令存储在自由表“口令表”中，当用户输入用户名和口令并单击“登录”按，若用户名输入错误，则提示“用户名错误”；若用户名输入正确，而口令输入错误，则提示“口令错误”。若命令按钮“登录”的Click事件中的代码如下： USE 口令表 GO TOP flag=0 DO WHILE.not.EOF() IF Alltrim(用户名)==Alltrim(Thisform.Text1.Value) IF Alltrim(口令)==Alltrim(Thisform.Text2.Value) WAIT“欢迎使用”WINDOW TIMEOUT2 ELSE WAIT“口令错误”WINDOW TIMEOUT2 ENDIF flag=l EXIT ENDIF SKIP ENDDO IF______ WAIT“用户名错误”WINDOW TIMEOUT2 ENDIF 则在横线处应填写的代码是
A.
flag=-1
B.
flag=0
C.
flag=l
D.
flag=2
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【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
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enter our hearts and vessels through blood
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【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
A.
About seven thousand million Italians smoke cigarettes every year.
B.
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C.
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D.
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相关题目：
【判断题】自动准同步装置输出的调压脉冲，作用于发电机的自动调节励磁装置，通过改变励磁电压达到调节发电机电压的目的。
A.
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B.
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【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
A.
Cigarette smoking appears to have a much greater effect than cigar or pipe smoking.
B.
Current research indicates a causal relationship between all forms of smoking and cancer of blood.
C.
All tobacco smoking affects life expectancy and health.
D.
Filters （过滤嘴） and low tar tobacco are claimed to make smoking to some extent safer.
查看完整题目与答案
【单选题】( 01101000 ) 8421 码对应的的十进制数是 。
A.
68
B.
26
C.
40
D.
102
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【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
A.
form deposits at last
B.
enter our hearts and vessels through blood
C.
stay in the heart for a long time
D.
hold together to form black tar, which contains nicotine
查看完整题目与答案
【单选题】( 01101000 ) 8421 对应的十进制数为( )。
A.
24
B.
38
C.
105
D.
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【单选题】与(01101000) 8421 对应的十进制数是( )。
A.
24
B.
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C.
105
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【简答题】Fill in the blanks with the right words or expressions. formidable, autonomy, give way to, permeate, substantial, proximity, next to impossible, pivotal, be subject to, incursion 1) The findi...
查看完整题目与答案
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A.
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B.
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C.
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【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
A.
About seven thousand million Italians smoke cigarettes every year.
B.
5,195 cigarettes are smoked every year in America.
C.
It is estimated that 55% of Italian men smoke compared with 38% of Italian women.
D.
Female smokers breathe in the smoke as deeply as men do.
查看完整题目与答案
【单选题】Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or mor...
A.
gases
B.
vaporized chemicals
C.
minute particles of ash
D.
water
查看完整题目与答案