存款证明业务的有权签字人为（）
A.管辖行行长
B.管辖行行长授权的副行长
C.储蓄所长
D.储蓄业务负责人
参考答案：A, B
用括号中单词的适当词形填空。
1. Help (you) to some soup, boys and girls.
2. The weather today is even ______ (bad) than yesterday.
3. Help yourselves to some fish. It's so ______ (taste).
4. Where will you choose (sit) on the bus?
5. She is shorter but ______ (slim) than me.
（）是神经递质。
A.核糖核酸
B.胆碱类
C.三磷酸腺苷
D.脱氧核糖核酸
