【单选题】新生儿生理性体重下降,下降了原有体重的多少为异常
【简答题】金属塑性成形过程中影响摩擦系数的因素有很多,归结起来主要有________________、______________、____________和____________________等几方面的因素。
【多选题】在采煤工业中,主要的职业危害因素包括 ____ 。
【简答题】We had to (在人群中 挤着向前进) so that we would not be late.
【简答题】用这些词填空 put help order hand push We had to______our way through the crowd (在人群中 挤着向前进) so that we would not be late.
【简答题】A. Complete the following sentences based on the given Chinese. 1. We had to __________ (在人群中挤着向前进) so that we would not be late. 2. Could you please __________ (帮我修一下电脑)? 3. I don't know how to ___...
【单选题】In the morning,the enemy _ their attack though they failed in their offense yesterday.
【单选题】The enemy failed in their ________to land on the small town.