经外周静脉穿刺中心静脉置管术的简称（）经皮腔内冠状动脉成形术的简称（）经颈内静脉肝内

My parents don’t care _______ my pocket money goes, but one thing is for sure: the money spent must

be worthwhile.[ ]

A. why

B. when

C. where

D. how

一根长为0.8m的绳子，当受到7.84N的拉力时即被拉断．若在此绳的一端拴一个质量为0.4Kg的物体，使物体以绳子的另一端为圆心在竖直面内做圆周运动，当物体运动到最低点时绳子断裂．求（1）物体运动至最低点时的角速度是多大？（2）物体运动至最低点时的线速度是多大？（3）若绳断处物体距地面高4.9m，经多长时间物体落至地面？（4）物体落地处距抛出点的水平距离多远？

硝酸酯类临床应用应注意

A．为减少不良反应，应避免与含巯基药物合用
B．为预防发作，可采取经皮肤不间断给药
C．对急性大发作应用超大剂量
D．应限制用量，以免降压过度
E．因可降低心输出量，伴心衰患者禁用

Motivation is "the driving force within individuals that impels them to action." And goals are the sought-after results_____(1) motivated behavior.Motivation can be either positive or negative_____(2) direction. We may feel a driving force toward some object or condition, _____(3) a driving force away from some object or condition. For example, a person may be impelled toward a restaurant to fulfill a need, hunger, and away_____(4) an airplane to fulfill a need of safety. Some psychologists refer to positive drives_____(5) needs, wants or desires,_____(6) negative drives as fears or aversions._____ (7), though negative and positive motivational forces seem to differ dramatically_____(8) terms of physical and sometimes emotional activity, they are basically similar in_____(9) they both serve to initiate and sustain human behavior.____(10) this reason, researchers often refer _____(11) both kinds of drives or motives as needs, wants and desires.Goals, _____(12), can be either positive or negative. A positive goal is one toward_____ (13) behavior is directed and it is often referred to as an approach object. A negative goal is _____(14) from which behavior is directed away and it is sometimes referred to as an avoidance object. Since both approach and avoidance goals can be considered objectives of motivated behavior, most researchers refer to_____(15) types simply as goals. Consider this example. A middle-aged woman may wish to remain_____(16) attractive as possible. Her positive goal is to appear desirable, and_____(17) she may use a perfume advertised to make her irresistible. A negative goal may be to prevent her skin_____(18) aging, and therefore she may buy and use face creams._____(19) the former case, she uses perfume to help her achieve her positive goal — attractiveness; in the____(20) case, she uses face creams to help avoid a negative goal — wrinkled skin.

桡骨茎突部有一骨纤维性腱管，其间通过的是：（）

A.旋前方肌肌腱

B.拇长展肌和拇短伸肌的肌腱

C.桡侧腕长伸肌腱

D.拇长展肌和拇长伸肌的肌腱

E.拇长伸肌和桡侧腕伸肌的肌腱