【名词&注释】
纤维素(cellulose)、细胞壁(cell wall)、木质部(xylem)、裸子植物(gymnosperm)、绝大多数(most)
[单选题]裸子植物茎的木质部中含有导管。( )
A. 正确
B. 错误
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举一反三：
[单选题]At the age of 29, Dave was a worker, in a small apartment near Boston and ______ what to do about his future.
A. living; wondering B． lived; wondering
B. lived; wondered D． living; wondered
[单选题]金藻门植物都具含纤维素和果胶质的细胞壁。( )
A. 正确
B. 错误
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