—Sam's ________ is worth praising，but saving someone from the river alone is too dangerous.
—Yes.As teenagers，we had better ask adults for help.
【考点】名词词义辨析．
【答案】B
【解答】
【点评】
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发布：2024/4/20 14:35:0组卷：43引用：5难度：0.6
