利多卡因的安全浓度和一次限量是（）。 A.0.5%～1%，1g B.0.25%～0.

把一个筛子用四根弹簧支起来，筛子上装一个电动偏心轮，它每转一周，给筛子一个驱动力，这就做成了一个共振筛。不开电动机让这个筛子自由振动时，完成20次全振动用15s；在某电压下，电动偏心轮的转速是2 r/s。已知增大电动偏心轮的电压可以使其转速提高，而增加筛子的总质量可以增大筛子的固有周期。为使共振筛的振幅增大，以下做法正确的是

A．降低输入电压

B．提高输入电压

C．增加筛子质量

D．减小筛子质量

慢性颅内压增高（）。

A.大脑半球单发转移瘤

B.细菌性脑膜炎

C.高血压脑出血

D.颅内巨大脑膜瘤

E.脑梗死

可协助诊断肝豆状核变性的蛋白是（）

A.铜蓝蛋白

B.转铁蛋白

C.β-微球蛋白

D.C反应蛋白

E.白蛋白

Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (51) to how they can be best accommodate such changes. Growing bodies need movement and (52) , but not just in ways that emphasize competition. Because they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (53) that comes from achieving success and knowing that their accomplishments are admired by others. However, the typical teenage lifestyle is already filled with so much competition that it would be (54) to plan activities in which there are more winners than losers, for example, publishing newsletters with many student-written book reviews, (55) student artwork, and sponsoring book discussion clubs. A variety of small clubs can provide multiple opportunities for leadership, as well as for practice in successful (56) dynamics. Making friends is extremely important to teenagers, and many shy students need the (57) of some kind of organization with a supportive adult (58) visible in the background.

In these activities, it is important to remember that the young teens have (59) attention spans. A variety of activities should be organized (60) participants can remain active as long as they want and then go on to something else without feeling guilty and without letting the other participants down.

51().

A.thought 

B.idea 

C.opinion 

D.advice

存贷比的计算公式为（）。

A.贷款余额/存款余额

B.流动性资产余额/流动性负债余额

C.合格优质流动性资产/未来30天现金净流出量

D.合格优质流动性资产/未来90天现金净流出量