正确答案: CD

侧生分生组织 次生分生组织

题目：维管形成层属于( )。

解析：CD

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举一反三的答案和解析：

[单选题]目前在长江口相继建起了崇明东滩鸟类自然保护区、九段沙湿地自然保护区与长江口中华鲟自然保护区等。其主要目的是（ ）。

保护河口生态

[单选题]Every few years, the coal workers ______ their lungs X-rayed to ensure their health.

have

解析：

根据时间状语every few years,可判断本句应为一般现在时，因此答案选B。

[单选题]禾本科植物小穗中小花的花被为( )。

浆片

[单选题]

empty-handed

[单选题]How does the author seem to feel about the future of newspapers?

Worried D． Surprised

[单选题]色当战役的重大影响是

①促成了法国与撒丁王国结盟 ②导致了法兰西第二帝国垮台 ③推动了普鲁士与奥地利联合 ④增加了德国工业发展的资源

②④

[单选题]E

It's only 4 hours flying time from Sydney, but a world away. What better place to rest than a country where the only place people hurry is on the football field and things are done in "Fiji time"? Viti Lev-Great Fiji-is the largest island. Here you'll find the capital Suva and the international airport at Nadi Vatoa, on the other hand, is a tiny island in the farthest part of Hiji. Then there are 331 other islands, many of them with places to stay. With less than a million people living on islands, you'll never feel crowded And with a climate（气候）that changes only for five degrees between seasons, there’s never a bad time to come. From cities to villages, from mountains to beaches, from water sports to wooden artworks, Fiji can give you more adventures and special experiences than you could find almost any where in the world. Whenever you come , wherever you go ,you’re sure to see some unforgettable events , From war dances to religious （宗教的） songs. From market days to religious days. It's not just staged for tourists; it's still a part of everyday life in Fiji And any one of us can enjoy Fiji's spirit by being part of the traditional （传统的） sharing of yaqona—a drink made from the root of a Fiji plant So why not join us for the experience of a lifetime? 57. Where is the international airport of Fiji?

On the island of Viti Levu

[单选题]下列史实符合西周确立的宗法制继承原则的是

明太祖因太子亡指定嫡长孙继位

解析：西周确立的宗法制继承原则是嫡长子继承制，即王位和财产必须由嫡长子继承，在这一制度下太子亡就应该由太子的嫡长子，也就是明太祖的嫡长孙继承王位。

[单选题]In the texc the authot expresses_____,

hia surprise at China’s recent devclopment