1. [单选题]把下面文言诗文的作者按朝代的先后排序，选出正确的一项( )(2分)①《次北固山下》 ②《送东阳马生序》 ③《桃花源记》 ④《山坡羊潼关怀古》
A. ①③④②
B. ③①②④
C. ③①④②
D. ②③①④
2. [单选题]1． —Whose guitar is this?—It ________ Alice． She plays the guitar．
A. might be
B. must be
C. can belong
D. might belong to
3. [单选题]人体内发生哪种变化不会引起免疫反应B.肿瘤细胞出现[来源:]
A. 红细胞死亡
B. 血糖浓度升高
4. [单选题]22． What problems are caused by too much homework?
A. Feeling stressed and fighting with each other．
B. Feeling tired of study and getting fat．
C. Feeling stressed and getting short-sighted．
D. Getting short-sighted and feeling tired of study．
5. [单选题]实验室用高锰酸钾制氧气的实验中，不需要使用的一组仪器是（ ）
A. 烧杯，玻璃棒(glass rod) B．大试管，集气瓶
B. 酒精灯，铁架台 D．导管，单孔塞
