题目内容
（请给出正确答案）
提问人：网友l******8
发布时间：2022年3月23日 02:15
[单项选择题]
Medicine comes in many forms. In its liquid form, medicine affects the body very quickly. But the...As it is used in paragraph 4 of the passage, the word "porous" means().
A. having or full of holes
B. lacking physical strength, energy, or vigor
C. easily broken or hurt
D. powerful against harm.
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