如果广告内容是宣布明日的销售活动，则不宜在（）上登载。
A.杂志
B.到达率
C.总收视率
D.注目率
参考答案：A
The fire was finally brought under control, but not______ heavy damage had been caused.
A．before
B．after
C．since
D．until
根外施肥应在（）时喷于枝叶上。
A.早晨
B.中午
C.傍晚
D.中午或傍晚
