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问题 多项选择题

针对公共停车场保安员的行为，下列说法正确的是（）。

A：礼貌询问有疑问的机动车驾驶人

B：对出入的车辆进行登记

C：维护停车场秩序

D：允许他人在无人的停车场练车

E：允许车辆随意停放

答案

参考答案：A, B, C

完形填空

Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their_____小题1:____ (life). However, rescue operations are _____小题2:____ (prove) difficult. If explosives are used, vibrations will cause the roof of the mine ____小题3:_____ (collapse). Rescue workers are therefore drilling a hole on the north side of the mine. They intend to bring the men up in    小题4:   special capsule.     小题5:    there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours. As it is, they have been drilling for sixteen hours and they still have a long way to go. Meanwhile, a microphone, which   小题6:  (low) into the mine two hours ago, has enabled the men to keep in touch with the closest relatives. Though they are running out of food    小题7:     drink, the men are     小题8:  (cheer) and confident that they will get out soon. They have been told that rescue operations are progressing     小题9:   (smooth). If they knew how difficult it was to drill      小题10:   the hard rock, they would lose heart.
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单项选择题

患儿，男性，2岁，家长发现右眼瞳孔发白3个月。检查右眼眼底视网膜脱离，颞侧一黄白色肿块，表面有新生血管。你考虑下面何种疾病()

A．视网膜母细胞瘤

B．视网膜色素变性

C．脉络膜黑色素瘤

D．黄色瘤

E．视网膜脱离
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