货叉不能起升的原因
参考答案：
（1）油箱缺油（2）油管接头堵塞或严重漏油（3）油泵损坏（4）安全阀弹簧折断或产生永久变形。
The cinema was crowded with many people, ____many children_______ on their parents' laps. [ ]
A. including; seated
B. including; seating
C. include ; sat
D. included; sitting
与纤溶酶原具有高度同源性的载脂蛋白是（）
A.ApoAⅠ
B.ApoE
C.ApoB100
D.ApoCⅢ
E.Apo(a)
