问题
单项选择题
下面的关键字中，不能够从循环体中跳到循环体外的______。
A．goto
B．break
C．return
D．continue
答案
参考答案：B
解析：[评析] 在C语言中，可以用break语句和continue语句跳出本层循环和结束本次循环。goto语句可跳出多层循环，如果在函数的循环体内使用return语句，就会直接结束循环返回函数值。
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下面的关键字中，不能够从循环体中跳到循环体外的______。
A．goto
B．break
C．return
D．continue
参考答案：B
解析：[评析] 在C语言中，可以用break语句和continue语句跳出本层循环和结束本次循环。goto语句可跳出多层循环，如果在函数的循环体内使用return语句，就会直接结束循环返回函数值。
| It may be necessary, in order that .future (51) can enjoy clean air, that more of the (52) is borne by long-term central government fund．As air pollution varies enormously from place to place and can, indeed, be very local, it may also be necessary for the central government to (53) money so that local authorities can (54) special local problems. That these can be significant was shown by the report made in 1970 (55) behalf of the London Boroughs Association. This (56) that in central London since 1958 smoke concentrations have decreased by 80 percent, whereas sunshine has increased by 70 percent and winter visibility has (57) threefold, There have been (58) in mortality and hospital admissions (59) with air pollution and in the response to it of bronchitis, as well as clear if less documented increases in plant types and bird (60) n the cities. |
A．fee
B．tuition
C．cost
D．charge