正确答案: B

错误

题目：通常大孢子母细胞衍生的4个大孢子中只有珠孔端的一个发育为胚囊。( )

解析：B

查看原题

举一反三的答案和解析：

[单选题]在一些蓝藻的藻丝上常有异形胞，它的功能是进行光合作用和营养繁殖。( )

错误

[单选题]DWhen I first got an email account ten years ago, I received communications only from family,friends,and colleagues.Now it seems that every time I check my e-mail ,I have an endless seriers of advertisement and otner correspondence that do not interest the at all.If we want e-mail to continue to be useful,we need special laws that make spamming(发送垃圾邮件) a crime.

To persuade

[单选题]下列词语中，划线字的读音全都正确的一组是

包扎(zā) 殷红(yān) 损兵折将(zhé) 还看今朝(hái)

[单选题]How did the auther probably feel after he talked with his friend?

Surpricd D．Rectful

[单选题]May I take this book out of the reading room?No,you_______ . You read it in here.

mustn’t

解析：

. 考查情态动词。英语中用could，might表示询问或征求意见的问句中，肯定性应答要用can或may来代替could或might，而may或might征求意见的问句否定应答时要用mustn’t，故本题选D。

[单选题]下列词语中加点的字，每对的读音都不相同的一组是

陨石/功勋 倒胃口/倒栽葱崇山峻岭/怙恶不悛

[单选题]下列句子中，加点词的用法与其他三项不同的一项是

吾薄富贵而厚于书

[单选题]

determination

[单选题]草莓的果属于( )。

聚合果