208, Teratomas are unusual forms of cancer because they are composed of tissues such as tooth and bone not normally found in the organ in which the tumor appears.
A. because they are composed of tissues such as tooth and bone
B. because they are composed of tissues like tooth and bone that are
C. because they are composed of tissues, like tooth and bone, tissues
D. in that their composition, tissues such as tooth and bone, tissues
E. in that they are composed of tissues such as tooth and bone, tissues
答案是E
我想问问 because和in that 的区别,刚来不太会找,忘各位指点,
多谢多谢
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