工程质量监督机构应当对工程建设的以下哪两项执行强制性标准的情况实施监督？Ⅰ，设计Ⅱ，勘察Ⅲ.施工Ⅳ，监理( )

提示：Jane和Michael商量周末去野餐。他们讨论要去什么地方，带些什么。Michael建议邀请John和...

未知题型提示：Jane和Michael商量周末去野餐。他们讨论要去什么地方，带些什么。Michael建议邀请John和他的女朋友参加。最后他们决定星期六早上8点出发。

第（51）题答案为

提出以垂直生态过程的连续性为依据的“千层饼模式”(Layer－cakeModel，1981)的景观规划师是( ...

单项选择题提出以垂直生态过程的连续性为依据的“千层饼模式”(Layer－cakeModel，1981)的景观规划师是( )。

Enough sleep is important to health.The amount of sleep...

单项选择题Enough sleep is important to health.The amount of sleep（21）depends on the age of the per-son and the conditions in which sleep（22）.The young may need more sleep than the old,hut（23）eight hours are enough for the health of grown-ups.Some can do with less than this amount?but（24）may need more.Every person knows his own need.It is then a matter of how to（25）it.Sleep should be always enough to make one relaxed(松弛)and ready for（26）work.
Fresh air is（27）to sound sleep(酣睡).It is not（28）reason for some people to insist that?it is practical to sleep in the open air.（29）a person can keep himself warm,out-of-door sleeping?probably gives the body（30）complete relaxation.
Ability to sleep is largely a habit.The conditions refen-ed to only lead to sleep.Out-of-door（31）,a good habit of regular drinking and the avoidance of late eating and（32）are all helpful?to sound sleep.Such factors are largely within the（33）of any person.A bath at（34）,neither?hot nor cold but of body temperature,may be helpful to sleep.Sleeping pills should never be taken?except when suggested by（35）.
第（35）题选