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In the north of China, leaves usually fall when a ________ comes.
1年前
When asked ____ they needed most, the kids said they wanted to feel loved.
1年前
如图所示,一个重为5N的大砝码,用细线悬挂在O点,现在用力F拉砝码,使悬线偏离竖直方向30°时处于静止状态,此时所用拉力F的最小值为( )
1年前
The teacher asked me to ____ the exercise books before we began to do our homework.
1年前
执手相看泪眼,_______________。(柳永《雨霖铃》)
1年前