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【简答题】
??????Enough sleep is important to health. The amount of sleep (1) depends on the age of the person and the conditions in which sleep (2) . The young may need more sleep than the old, but (3) eight hours are enough for the health of grown-ups. Some can do with less than this amount(量) but (4) may need more. Every person knows his own need. It is then a matter of how to (5) it. Sleep should be always enough to make one relaxed (松弛) and ready for (6) work.?? ??Fresh air is (7) to sound sleep(酣睡).It is not (8) reason for some people to insist that it is practical to sleep in the open air. (9) a person can keep himself warm,out-of-door sleeping probably gives the body (10) complete relaxation.?? ??Ability to sleep is largely a habit. The conditions referred to only lead to sleep. Out-of-door (11) , a good habit of regular drinking and the avoidance (避免) of late eating and (12)are all helpful to sound sleep. Such factors (因素) are largely within the (13) of any person. A bath at (14) ,neither hot nor cold but of body temperature, may be helpful to sleep. Sleeping pills (安眠药) should never be taken except when suggested by (15) .???? A.wished B.expected C.needed D.wanted A.seldom B.sometimes C.always D.generally A.necessary B.able C.no good D.best A.As B.Where C.Unless D.When A.a strong B.a most C.a bad D.an exciting A.walks B.exercises C.trips D.housework A.worry B.fear C.carelessness D.hard work A.fight B.plan C.control D.thought A.any time B.bed time C.midnight D.lunch time A.falls down B.breaks out C.wakes up D.takes place A.the best B.at all C.without D.a good A.children B.women C.others D.few A.hard B.his own C.a day’s D.good A.the sleeper B.a doctor C.a child D.parents A.help B.satisfy C.demand D.take
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【单选题】关于创伤性神经瘤的形成下列哪项是正确的
A.
神经纤维细胞增生
B.
神经纤维断裂变性
C.
神经鞘细胞增生形成带状的合体细胞
D.
再生轴突与增生的结缔组织混杂在一起卷曲成团
E.
神经鞘细胞与增生的结缔组织混杂在一起卷曲成团
【单选题】依据《通用安装工程工程量计算规范》(GB 50856-2013),项目安装高度若超过基本高度时,应在“项目特征”中描述,对于附录K给排水、采暖、燃气工程,其基本安装高度为( )。
A.
3.6m
B.
5m
C.
6m
D.
10m
【单选题】当代表演艺术最大的形态特征是?
A.
创新
B.
继承
C.
融合
D.
其他
【单选题】若变量x与y之间的相关系数r=0,则下列结论中正确的是( )。
A.
判定系数R2=1
B.
判定系数R2=0
C.
回归系数
D.
估计标准误差se=0
【简答题】若变量x与y之间的相关系数r=0,则下列结论中正确的是( )。
【单选题】若变量x与y之间的相关系数r=0.8,则回归方程的判定系数R2=( )。
A.
0.8
B.
0.89
C.
0.64
D.
0.40
【单选题】关于创伤性神经瘤的形成下列哪项是正确的:
A.
神经纤维细胞增生
B.
神经纤维断裂变性
C.
神经鞘细胞增生形成带状合体细胞
D.
再生轴突与增生的结缔组织混杂在一起卷曲成团
E.
神经鞘细胞与增生的结缔组织混杂在一起卷曲成团
【单选题】关于创伤性神经瘤的形成下列哪项是正确的?
A.
神经纤维细胞增生
B.
神经纤维断裂变性
C.
神经鞘细胞增生形成带状的合体细胞
D.
再生的神经纤维轴突与增生的结缔组织混杂在一起卷曲成团
E.
神经鞘细胞与增生的结缔组织混杂在一起卷曲成团
【判断题】若变量 x 与 y 之间的相关系数 r=0 ,则判定系数 R 2 =1 。
A.
正确
B.
错误
【简答题】资本总是向利润最高的地方流动,即追求 的最大化
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