题目

Sometimes the resolutions may be _______ difficult _______.A．too; to keep               B．so; that I can keepC．such; that I can keep  D．enough; to keep 答案：A 解析：句意为“有时决心可能太难而无法实现。”从选项中可以看出只有A符合句意和句子结构。位于我国季风区的盆地是(   )A.四川盆地 B.塔里木盆地 C.准噶尔盆地 D.柴达木盆地