海星喜欢吃海中的小型生物,它捕食后会怎么做?() A.用身体把食物碾碎 B.用身上的

题型:单项选择题

问题:

海星喜欢吃海中的小型生物,它捕食后会怎么做?()

A.用身体把食物碾碎

B.用身上的刺把毒素注入食物

C.把胃吐出来包裹食物

D.把肠子吐出来包裹食物

考点:海洋知识竞赛海洋知识海洋知识题库
题型:单项选择题

单词拼写(共10小题,每题1.5分,满分15分)

小题1:Don’t e_____ your skin to direct sunlight, or you’ll get sunburnt.

小题2:The scientist often ______(向……投稿) to an academic journal.

小题3:Only by s_____ training can Liu Xiang make such rapid progress in 110-meter hurdles.

小题4:If we were too _____(小心的) , we might lose a good business opportunity.

小题5:The new school is under c_____ and it is said that it will be the biggest one when completed.

小题6:We have provided seats for the _____(方便) of our customers.

小题7:Animals in zoos are not in their natural s_____.(环境)

小题8: He is a man who is _____(乐观的) about life.

小题9: _____(在……之前) to leaving for France, he studied a lot about the country.

小题10:She is c______ changing her mind so no one knows what her final decision is.

题型:单项选择题

水平真空过滤机的真空滤盘是靠()形成真空的

A.滤带传送装置

B.滤带再生装置

C.真空泵

D.自动排液装置

题型:单项选择题

患者,男,70岁,无牙颌。上颌牙槽嵴吸收较少,有一定的高度和宽度,形态丰满;下颌牙槽嵴高度明显降低,大部分吸收而低平。

患者戴牙后下牙槽嵴黏膜出现大面积弥散性的压痛,其原因最可能是()

A.垂直距离恢复过高

B.缓冲区未充分缓冲处理,导致压力过大

C.咬合不平衡,存在咬合高点

D.义齿基托边缘伸展过长

E.取模时压力不均匀,导致局部压力过大

题型:单项选择题

简述雁剧。

题型:单项选择题

试述病案科管理人员的配备原则和专业要求。

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