If you poke your tongue into a hole of your teeth, it feels very thin and slim.
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The "felt image" lets you recognize your physical existence in the world.
A. True
B. False
将某种含孔材料分别置于不同湿度的环境中,所测得密度值中以干燥状态下的密度值为最小。 ()
A. 正确
B. 错误
The talk is mainly about the importance of "left image",
A. True
B. False
【B4】
A. before
B. as
C. until
D. when