We learn from Para. 1 that Google's Gmail provoked suspicion mainly for______.
A. its acclaimed storing capacity
B. its lack of innovation
C. its message-scanning function
D. its free services
无论在何种资金需要量预测方法下，外部筹资额均受到预计销售收入、未来的盈利水平、股利分配政策、资本结构等因素的作用。 ()
A. 正确
B. 错误
【C17】
A. confidently
B. prudently
C. creatively
D. temporarily
圆形或矩形管道与下方给水管道或铸铁管道交叉且同时施工时，加设套管或管廓，套管、管廓的内径不应小于被套管道外径()。
A. 100mm
B. 200mm
C. 300nlm
D. 400mm
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