正确答案: C

叶鞘

题目：竹亚科植物普通叶片脱落时，留在茎上的部分是( )。

解析：C

查看原题

举一反三的答案和解析：

[多选题]下列植物中有性生殖产生担孢子的有( )。

黑粉菌

猴头菌

解析：BD

[单选题]ENew archaeological discovers suggest that trade between Europe and Asia along the Silk Road probably began in some form. many countries earlier than once thought. The findings, coupled with a widening range of scientific and historical research could add a fascinating new page to the epic of the Silk Road.

combined

[单选题]40____

questions

[单选题]筛域，即筛管分子的侧壁上特化的初生纹孔场。( )

正确

[多选题]属桔梗科。

党参

沙参

解析：BD

[单选题]We can learn from the text that the wheels of the Grout Portable .

were fitted with solid tyres

[单选题]第一节(共5小题；每小题1.5分，满分7．5分) 听下面5段对话。每段对话后有一个小题，从题中所给的A、

B、c三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有l0秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1 .What will Dorothy do on the weekend?

Work on l her paper

[单选题]的壳斗上苞片结合成同心环。

青冈属