铧式犁一般由（），（），调节机构牵引装置或挂接装置等几个主要部分构成。
参考答案：犁体、犁架
有关肾源性水肿的护理措施下列哪项不正确（）
A.保持皮肤清洁
B.一律给予低盐低蛋白饮食
C.定期对病室进行消毒
D.各种穿刺前严格消毒皮肤
E.静脉输液控制滴速和总量
These achievements_______ without the contribution of Qian Xuesen, a key leader of the New
China's nuclear, missile and so on. [ ]
A. would have been unthinkable
B. would not be unthinkable
C. would be unthinkable
D. would not have been unthinkable
