五官科的医生在给病人检查鼻孔时,头上戴的额镜前面有一个聚光灯泡,该灯泡的光射向额

题型:选择题

问题:

五官科的医生在给病人检查鼻孔时,头上戴的额镜前面有一个聚光灯泡,该灯泡的光射向额镜,其中额镜是(  )

A.平面镜

B.凹面镜

C.凹透镜

D.凸透镜

考点:球面镜(凸面镜、凹面镜)
题型:选择题

短文改错(共10小题,每小题1分,满分10分)

Not all people like to work and everyone likes to play. All over the world men and woman, boys and girls enjoy sports. Since long ago, many adults and children called their friends together to spend hours, even days play games. One of the reasons people like to play is that sports help them to live happy. In other words, they help to keep people strong and feel well. When people are playing games, they move a lot .That is how sports are good activities for their health. Having fun with their friends make them happy .Many people enjoy sports by watching others play. In American big cities, thousands sell tickets to watch football or basketball games.

题型:选择题

人胰岛内分泌细胞中()。

A.A细胞位于胰岛周边,分泌胰高血糖素

B.B细胞位于胰岛周边,分泌胰岛素

C.D细胞数量最多,分泌生长抑素

D.B细胞位于胰岛中央部,分泌胰高血糖素

题型:选择题

在健康保险合同中,()是提供医疗费用保障的保险,以约定的医疗费用为给付保险金条件。

A.收入保险

B.疾病保险

C.医疗保险

D.护理保险

题型:选择题

人民警察在实施管制措施的过程中,可以采取必要手段强行驱散人群,并将拒不服从的人员强行带离现场或者立即予以拘留。( )

题型:选择题

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