典型调查的优点有（）。 A.调查范围小 B.调查单位少 C.具体深入 D.灵活机动

一新生儿出生时有重度窒息，生后24h时，小儿烦躁、肢体抖动。体检：体温正常，前囟饱满，肌张力增高，瞳孔等大，心肺听诊正常。血白细胞11．0×10／L，中性粒细胞0．65，血钙2．4mmol／L，血糖2．5mmol／L。

患儿在治疗期间，突然四肢抽动，下列措施哪项不妥（）

A.吸氧

B.静脉缓慢注射苯巴比妥20mg／kg

C.用泰能加强抗感染

D.增加脱水剂的应用

E.吸痰，清除咽喉部的分泌物

第三恒磨牙的牙胚形成时间（）。

A.胚胎的第10个月

B.出生后第6个月

C.出生后2～3岁

D.出生后4～5岁

E.以上都不是

在勇气号火星探测器着陆的最后阶段，着陆器降落到火星表面上，再经过多次弹跳才停下来。假设着陆器第一次落到火星表面弹起后，到达最高点时高度为h，速度方向是水平的，速度大小为，求它第二次落到火星表面时速度的大小，计算时不计火星大气阻力。已知火星的一个卫星的圆轨道的半径为，周期为，火星可视为半径为的均匀球体。

I was reading Shirley Hazzard’s novel The Transit of Venus. Though I (51) her other books, I had always resisted this one. It (52) me as too pure somehow, too heroic, larger or finer than life and therefore unreal. But now I read it with an almost (53) pleasure. There were sentences that (54) of gratification to my eyes and (55) the hairs on the nape of my neck. I was in a Boston hospital, propped tip in bed with a feeding tube in my arm after (56) surgery for cancer. It was

(57) double room and my roommate, who (58) when he spoke because he had both a broken chin and a drug habit was spraying the air for the fourth or fifth time that day with (59) had a television set and a radio going (60) . The diagnosis of my case was ambiguous. When I asked the doctor the usual question-How much time have I got—he hesitated before answering. "I would say," he said, "that you have in the neighborhood of years.\

55().

A.raise 

B.raised 

C.rise 

D.risen