问题

However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.

A:lying in
B:calling in
C:existing in
D:resulting in

正确答案是：

同类题型

The reason for _______ he failed in the exam was that he was too careless.

How did you get in touch with the travel agent, Robin?—Oh, that’s easy. I surfed the Internet and then called one ________ the telephonenumber is provided.

I’d like to play football with you, but I have an important thing to attend to. —If you don’t go, __________.

Father was late for workthe traffic jam, and,the boss blamed him for it

下列各项中，语言表达得体的一项是（）