下列哪项不是被覆黏膜的特征（） A.无颗粒层 B.无角化层 C.上_爱下问搜题

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问题单项选择题 A1型题

下列哪项不是被覆黏膜的特征（）

A.无颗粒层

B.无角化层

C.上皮钉突短

D.固有层界限不清

E.无黏膜下层

答案

参考答案：D

解析：被覆黏膜的特点是：表面平滑，粉红色，无角化（B对），无颗粒层（A对），黏膜下层与固有层无明显界限（D对），上皮钉突短（C对），被覆黏膜有较疏松的黏膜下层，被覆黏膜富有弹性，有一定的活动度，E是错误的。故应选E。

完形填空

Last year, I lost my best friend in high school. It seemed that everyone else’s life could just continue on in its 36 way, but mine couldn't. I wasn't sure how I was going to be able to face 37 and their gossip at school. I was forced to 38 my routine on Monday morning as usual. In the evening I returned home from school 39 completely defeated. All I wanted to do was 40 into bed and wallow(沉迷于)in my own self-pity. I pulled back the covers on my bed and 41 a pile of cards left by my dad. Each card included a(n) 42 that it was to be opened on a 43 night that week.
I made it through that week 44 my father. Each card 45 to say just what I needed to hear. Tuesday’s card said, “The past is painful to think about and the 46 is impossible to imagine. Don't try. Just take it one minute at a time.” On Wednesday my mood 47 when I read, “What you are feeling now is 48 and normal. It still feels very bad, but it is part of the healing 49 .” Friday’s card contained a poem he wrote. The last lines made me smile through my tears. “Whatever special 50 you face along life’s way, may you 51 that you will find the best in every day.” I was instructed to open the last card 52 the party I went to on Saturday night. In it he wisely reminded me to 53 . “The world isn't so bad after a good laugh. The more you laugh, the more you heal.” Each card was signed, “Love, Dad.”
My world once collapsed (fell down) but I 54 the difficult breakup eventually. It owed to my dad, who made his 55 known when he couldn't be present.

D．come across

D．considering

A．instruction

B．explanation

C．presentation

D．information

A．in favor of

B．regardless of

C．in search of

A．destruction

B．competition

D．destination

A．got through

B．looked through

C．broke through

D．put through

单项选择题

某实验室的多台计算机需要连入Internet，仅有电话线而无网卡，需要购置______。

A．路由器
B．网卡
C．调制解调器
D．集线器