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问题 选择题

由气候条件决定植物群落分布的两个主要因

A．风力和热量

B．光照和热量

C．雨量和风力

D．热量和雨量

答案

答案：B

植物要进行光合作用所以离不开光照，在新陈代谢中温度影响酶的活性，B正确。

单项选择题

SOX is an alternative (71) for XML. It is useful for reading and creating XML content in a (72) editor. It is then easily transformed into proper XML. SOX was created because developers can spend a great deal of time with raw XML. For many of us, the popular XML (73) have not reached a point where their tree views, tables and forms can completely substitute for the underlying (74) language. This is not surprising when one considers that developers still use a text view, albeit enhanced, for editing other languages such as Java. SOX uses (75) to represent the structure of an XML document, which eliminates the need for closing tags and a number of quoting devices. The result is surprisingly clear.

（72）处填（）。

A．command

B．program

C．graphic

D．text
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单项选择题

关于口腔颌面部感染的特点，下列说法错误的是

A．口腔、鼻腔的环境有利于细菌滋生繁殖
B．牙齿的病变常向颌骨和颌周蔓延
C．颌面部筋膜间隙内血管丰富，抗病力强
D．颌面部感染易逆行导致严重并发症
E．颌面部暴露在外，易受各种损伤，继发感染
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