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问题 单项选择题

因位于2q34的ATP结合盒A12基因突变所致（）

A．板层状鱼鳞病

B．婴儿鱼鳞病

C．遗传性寻常型鱼鳞病

D．X性连锁的鱼鳞病

E．表皮松解性角化过度型鱼鳞病

答案

参考答案：E

填空题

根据句意及首字母提示补全所缺单词。

1. —Are you going to come?      —P_______. I'll see how I feel.

2. Don't spit in p________. It's impolite and isn't good for the environment.

3. Tom had a bad cold and he c________ a lot.

4. "Please be quiet. The baby is sleeping," she said in a low v________.

5. As a student, we should obey the rules and can't b________ the rules.

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单项选择题

木质部在老根中央有栓化细胞环的药材为

A．川乌
B．黄芩
C．龙胆
D．麦冬
E．天麻
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