乙酰CoA羧化酶的别构激活剂是 A.柠檬酸 B.G-6-P C.ADP D.长链脂酰

题型:单项选择题

问题:

乙酰CoA羧化酶的别构激活剂是

A.柠檬酸
B.G-6-P
C.ADP
D.长链脂酰CoA

考点:普通考研西医综合西医综合
题型:单项选择题
当x=______时,分式
1
x-3
没有意义.
题型:单项选择题

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.

题型:单项选择题

DHCP协议的功能是(1),它使用(2)作为传输协议。 空白(1)处应选择()

A.为客户自动进行注册

B.为客户机自动配置IP地址

C.使用DNS名字自动登录

D.使用WINS名字进行网络查询

题型:单项选择题

“走了一趟”中的“一趟”是()。

A.结果补语

B.数量补语

C.情态补语

D.程度补语

题型:单项选择题

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