曲轴的径向间隙（）会使润滑油压力降低。
A.过大
B.过小
C.过大或过小
参考答案：A
Neither he nor his parents _____ going to Beijing. [ ]
A. is
B. was
C. are
D. will
雅典卫城（）的朝向略略偏一点，同山门呼应，使卫城西面的构图很完美。
