除尘器筒体内耐磨层浇注完毕,冬季养护时筒体外温度在()℃左右为宜。
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After an accident the victim may go into shock and die. What should be done to help prevent shock?()
A. Slightly elevate the head and feet
B. Keep the person awake
C. Keep the person lying down and at a comfortable temperature
D. Give the person a stimulant to increase blood flow
桥梁防洪措施有()、防止堵塞、防止淤积、预防冲刷、河道截弯取直等措施。
一般动物的幼体可以在较广阔的适宜区限生活,但成体要在最适区限生活。()
A. 正确
B. 错误
自己爱上了工作对象或者工作对象爱上了自己,怎么办?