题目内容

John ____ (tell) me that there was a car accident lastnight.

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I’m getting tired—it’s time we ____ (go) home.

I _____ (hear)old Mrs. Smithhas lost her cat. (hear)

I _____ (wonder) if you werefree this evening. (wondered)

关于组织的描述,哪项正确

A. 细胞和细胞外基质
B. 纤维和基质
C. 细胞和纤维
D. 细胞外基质和体液
E. 细胞和组织液