2. 外语
  3. Oxygen and nutrients reach the body’s tissues ______ from the blood through the capillary wall.

Oxygen and nutrients reach the body’s tissues ______ from the blood through the capillary wall.

admin2004-12-30  493
问题 Oxygen and nutrients reach the body’s tissues ______ from the blood through the capillary wall.
选项 A、pass
B、by passing
C、to be passing
D、have passed
答案B
解析
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