下列关于甘露醇的叙述不正确的是（）
A.脱水需静脉给药
B.体内不被代谢
C.不易通过毛细血管
D.提高血浆渗透压
E.易被肾小管重吸收
参考答案：E
In September 2008,China’s key milestone in space travel _____when Zhai Zhigang
conducted the first space walk.
A．reached
B．was reached
C．has reached
D．had been reached
滚动轴轴承游隙分为（）游隙和（）游隙。
