饰面板采用湿作业法施工时，应进行防碱背涂处理的是()。
A. 人造石材
B. 抛光砖
C. 天然石材
D. 陶瓷砖
——What is the weather like in spring here？ ——It is ______ too hot ______ too cold.
A. neither; nor
B. both; and
C. not; but
治疗最应使用
A. 甘草甜素
B. 氯霉素
C. 喹诺酮类
D. 吡喹酮
E. 氯喹
When someone says "Isn't it a fine day？" he means ______ .
A. he doesn't know it is a fine day
B. he doesn't think it is a fine day
C. he thinks it is a fine day
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