未分类题
On a warm sunny day the river seems ______ and benign, and it's hard to believe it can be dangerous.
A.treacherous
B.perilous
C.placid
D.turbulent
A.A.treacherous
B.perilous
C.placid
D.turbulent
【参考答案】
C
解析：A项treacherous意为“奸诈的，不可靠的”；B项perilous意为“有危险的”；C项plac......
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