一道题不太明白

xiang_y

Since savings banks have to use short-term deposits to finance long-term fixed-rate mortgage loans, they sometimes lose money when there is a rise in short-term rates and, on the other hand, they are unable to raise the rates on their mortgages.
(A) when there is a rise in short-term rates and, on the other hand, they are unable to raise
(B) when short-term rates rise and they are unable to raise
(C) when a rise in short-term rates occurs and, correspondingly, there is no rise possible in
(D) with a rise in short-term rates, and they are unable to raise
(E) with short-term rates on the rise and no rise possible in

答案是B， 问题是(1)B中and前是否应加逗号。(2)A, C 的毛病在哪里。

深海的小美人鱼

b前无需加逗号
这里有并列。
A，C 中用there be 累赘 on the other hand 有点wordy,并且有转折意思
a rise occurs 不如用rise动词简洁

Samson2004

以下是引用深海的小美人鱼在2003-11-22 12:28:00的发言：
b前无需加逗号
这里有并列。
A，C 中用there be 累赘 on the other hand 有点wordy,并且有转折意思
a rise occurs 不如用rise动词简洁

其他同意。
有关逗号，不知道你的题目来源，但认为应该加。
og中好像有解释提到（哪题忘了），连接两个independent clause 的平行时prefer用
逗号。而且，用逗号更清晰些吧。
个人意见，大家探讨。

xiang_y

谢谢楼上两位， 这是SC885， Section20, No.20. A, C 累赘是对的， 之所以考虑它们是因为觉得B有问题。我也记得OG中，连接两个independent clause 的平行时应用逗号， 否则算错。