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【单选题】
关于软骨细胞的描述哪项错误:A.
细胞呈扁圆形或球形
B.
胞质内有丰富的粗面内质网和复合体
C.
具有蛋白质合成和分泌细胞的典型特点
D.
产生纤维和基质
E.
光镜下可见胞质含有丰富的溶酶体
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】语言形成的过程要经过以下()个阶段。
A.
声学阶段→语言阶段→语言阶段→语言阶段→生理阶段
B.
声学阶段→生理阶段→语言阶段→生理阶段→声学阶段
C.
声学阶段→语言阶段→声学阶段→生理阶段→语言阶段
D.
语言阶段→生理阶段→语言阶段→生理阶段→声学阶段
E.
语言阶段→生理阶段→声学阶段→生理阶段→语言阶段。
【单选题】Three fourths of the surface of the earth ___ covered withwater.
A.
are
B.
is
C.
was
D.
were
【单选题】Three fourths of the surface of the earth ______ covered with water.
A.
are
B.
is
C.
will be
D.
was
【简答题】论述活性污泥法中丝状菌污泥膨胀的概念、危害和评价指标
【简答题】were/is (1)Three fourths of the teachers present _____ against the plan. (2)Three fourths of the suce of the earth ______ covered with water.
【简答题】衬叶可以修剪变曲造型吗?都有哪些形式和方法?
【单选题】Three fourths of the teachers _____ against the plan,and three fourths of the plan _____ hard for them to carry out.
A.
was; is
B.
were, is
C.
was; are
D.
were; are
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