单项选择题What is the major function of Lipitor()
A. To help quit smoking. B. To control blood pressure. C. To improve unhealthy diet. D. To lower "bad" cholesterol.
问答题为什么任务设计要有合适的情景和语境
单项选择题41()
A.quite B.so C.such D.another
单项选择题Written in a hurry,______. How can it be satisfactory
单项选择题I'm tired out. I ______ all afternoon and I don't seem to have finished anything.