正确答案: B

多核、双倍体

题目：匍枝根霉的接合孢子为( )。

解析：B

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举一反三的答案和解析：

[单选题]Thebiggestwhaleis___bluewhale,whichgrowstobeabout29meterslong—theheightof___9-storybuilding.

the;a

[单选题]数值分类学的优点之一是客观性较强。( )

正确

[单选题]EAll too often , a choice that seems sustainable（可持续的）turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol（乙醇）for fuel from corn . Corn is a renewable resource —you can harvest it and grow more, almost limitlessly . So replacing gas with corn ethanol seems like a great idea .

The greater need for farmland.

[单选题](十)近年来，长江三角洲在经济发展的同时，出现了热岛效应、咸潮侵袭、滩涂冲刷等一系列环境问题。21. 长江三角洲区域性热岛效应比较明显的主要原因是

①② B． ③④ C． ②④ D． ①③

[单选题]What has Barbara got in her suitcase?

Shoes

[单选题]平常所见到的绿色、具茎叶和假根的葫芦藓植物体，其细胞的染色体数目为单倍体。( )

正确

[单选题]茎中木栓形成层最早起源于表皮或表皮下的皮层细胞。( )

正确