正确答案: A

正确

题目：桑科榕属植物有乳汁，托叶大而抱茎，脱落后在节上留有环痕。( )

解析：A

查看原题 点击获取本科目所有试题

举一反三的答案和解析：

[单选题]阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，回答41－45题。 I am a writer. I spend a great deal of my time thinking about the power of language—the way it can evoke(唤起) an emotion, a visual image, a complex idea, or a simple truth. Language is the tool of my trade. And I use them all—all the Englishes I grew up with.Born into a Chinese family that had recently arrived in California, I’ve been giving more thought to the kind of English my mother speaks. Like others, I have described it to people as “broken” English. But feel embarrassed to say that. It has always bothered me that I can think of no way to describe it other than “broken”, as if it were damaged and needed to be fixed, as if it lacked a certain wholeness. I’ve heard other terms used, “limited English,” for example. But they seem just as bad, as if everything is limited, including people’s perceptions(认识)of the limited English speaker.

she is a writer by profession

[单选题]The palace caught fires three times in the last century,and little of the original building_______ now.

remains

[多选题]下列菌类，( )不产生子实体。

酵母菌

禾柄锈菌

解析：AC

[单选题]当地球在甲位置时（ ）。

三峡水库处于蓄清期

[单选题]大豆、花生、油菜、芝麻(胡麻)为我国四大油料作物。( )

正确

[单选题]花药的纤维层是由( )发育而来。

药室内壁