He rose, his face void_____ emotion as he walked towards the door.
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Racing up the stairs, he almost collided_____ his sixty-year-old grandfather.
He urged them to adhere ____ the values of Islam which defend the dignity of men.
以下属于机身功用的是
A. 容纳人员和货物
B. 连接其他机体部件
C. 装载武器和燃油
D. 其他部件的承力基础
以下不属于机身特殊性体现的是
A. 以集中力载荷为主
B. 以分布力载荷为主
C. 开口多
D. 协调关系多