从中国境外取得所得的纳税人，其来源于中国境外的应纳税所得，如在境外以纳税年度计算缴纳个人所得税的，应在所得来源国的纳税年度终了、结清税款后的( )，向中国主管税务机关申报纳税。

A．15日内

B．90日内

C．60日内

D．30日内

Enough sleep is important to health. The amount of sleep needed __31________ on the age of the person and the conditions in ___32_______ sleep takes place. The young may need more sleep than ___33_______ old, but usually eight hours are enough for the health of grown-ups. Some can do with __34________ than this amount, but others may need more. Every person knows his own need. ___35_______ is then a matter of good judgment to satisfy his need. Sleep __36________ always be enough to make one bring back his __37________ (strong) and get ready for a day’s work.

Fresh air is necessary to sound sleep. So it is not __38_________ reason for some people to think that it is practicable to sleep in the open air. A bath at bedtime, __39________ hot nor cool but of body temperature, may be helpful to sleep. Sleep-producing drug(帮助睡眠的药物) should never be taken except when ___40_________ (suggest) by a doctor.