正确答案: B

错误

题目：木栓形成层只能来自中柱鞘。( )

解析：B

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举一反三的答案和解析：

[单选题]下列关于秦朝历史的表述，不符合史实的是（ ）。

私学也可以教授律令

[单选题]

B． rest C． walk D． game

walk

[单选题]

repeated

[单选题]15明代《闽部疏》载：“凡福之紬(绸)丝……福漳之桔，福兴之荔枝，泉漳之糖．颛昌之纸，无日不走分水岭及浦城之小关．下吴越如流水。其航大海而去者尤不可计，皆衣被天下。”材料反映明代福建

商品经济活跃

[单选题]CFood sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

Food poisoning means death.

[单选题]全株被黏质腺毛，叶为羽状复叶或羽状分裂。

番茄

[单选题]对膜剂成膜材料的要求，不正确的是（ ）。

眼用的、腔道用的膜材要有好的脂溶性

[单选题]下列植物属于子叶留土的是( )。

小麦

[单选题]

total