如果将轴承进油节流孔板直径增加一倍,那么该孔径通流面积将增加()倍;
A、1;
B、2;
C、3;
D、4
参考答案:C
Many tourists ____ once considered visiting Malaysia don’t want go there after the disappearance of Flight MH370.
A.where
B.whose
C.which
D.who
揉龟尾有治疗腹泻的作用。