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【单选题】
下面程序计算一个整数的各位数字之和,请为下换线位置选择一个语句: set talk off input "请输入一个整数:" to x s=0 do while x!=0 s=s+mod(x,10) _________________ enddo ? sA.
x=int(x/10)
B.
x=int(x%10)
C.
x=x-int(x/10)
D.
x=x-int(x%10)
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A.
Concerning
B.
Concerned
C.
To concern
D.
Concern
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A.
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B.
Require each passenger to show photo identification.
C.
Make a body search by hand.
D.
Operate X-ray machines to screen baggage.
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A.
biosafety & biorisk: horizontal gene transfer, the formation of antibiotic-resistant superbugs, etc.
B.
bioterrorism (e.g. design & use of new biological weapons)
C.
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D.
environmental risk & impact: intentional or unintentional release of synthetic organisms into the environment
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A.
readership.
B.
content.
C.
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D.
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A.
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B.
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A.
最大电流有效值
B.
最高电压有效值
C.
最大短路电流有效值
D.
额定电压有效值
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