以下不属于再沸炉的组成部分的是（）。
A、加热盘管
B、堰板
C、烃槽
D、汽提气管线
参考答案：C
I would have come to your party yesterday but I _______too busy. [ ]
A. was
B. had been
C. would have been
D. am
急性肾小球肾炎最常见的临床表现为（）
A.少尿、水肿
B.少尿、高血压
C.血尿、水肿、高血压
D.水肿、高血压
E.血尿、水肿、高血压、肾衰竭
