在汽轮机组各轴瓦进油口前加装节流孔板有何作用？
参考答案：
用以调节流量，使各轴瓦的润滑油量均衡，以保证合适的温升。
. Although most of them have no doubt ________ he will pass the exam , I still wonder _______ he has really got everything ready.
A．whether; that
B．that; whether
C．that; that
D．whether; whether
片剂较易出现溶出度方面的问题。
