【C9】A．habitatB．shelterC．residenceD．dwelling

【C17】A．countB．errC．imposeD．dwell

The word "coverage" in Paragraph 1 can be replaced by______.A．insuranceB．shelterC．protecti

The word "haven" in the last paragraph refers to______.A．paradiseB．shelterC．comfortD．compl

Which of the following words is used literally, NOT metaphorically？A．Dwell（Paragraph One).

Why does the author dwell upon the concept of science in this article？A．He wants to get th

番泻苷A中两个蒽酮母核的连接位置是（)A.C1—C1B.C2—C2C.C9—C9D.C10—C10E.C9—C10