无线局域网是计算机网络与无线通信技术相结合的产物，它利用（）技术，取代双绞铜线构成局域网络，提供传统有线局域网的所有功能。
A.RF
B.TF
C.DMT
D.CDMA/CA
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Mary likes dogs very much. She has a pug-dog. It is white. It has big eyes and ears. It is small but
it is cute and beautiful.
Every morning, the dog eats some bread and meat. They are the dog's favorite food. When Mary
goes to school, the dog always waits for (等待) her at the gate. When she comes back home, the dog
follows her here and there. When Mary does her homework, it lies (卧) near her feet. When Mary
watches TV, the dog sits on the sofa near her. When Mary goes to bed, the dog lies its bed next to
Mary's. in the evening, they often run and play in the yard (院子). They are really good friends.
根据短文内容，选择正确答案。
1. Mary has a _______ dog.
A. white
B. black
C. yellow
D. red
2. The pug-dog is very ________.
A. lazy and big
B. small and lazy
C. small and cute
D. big and beautiful
3. The pug-dog's favorite food are ________.
A. grass and leaves
B. fruit and fish
C. bread and meat
D. grass and meat
4. The dog _______ when Mary watches TV.
A. follows her here and there
B. lies near her
C. sits on the sofa
D. lies on the bed
5. Mary is a ________.
A. student
B. teacher
C. doctor
D. actor
培养微生物的培养基在使用前先高温处理，目的是要灭菌______．
（4分）下列物质：①Cu ② CO2 ③ H2SO3 ④ H2O ⑤液态HCl ⑥ H2SO4 ⑦ Ba(OH)2⑧ NaCl ⑨蔗糖 ⑩NaOH溶液。
属于电解质的是 ，属于非电解质的是 ，能导电的是 。（填序号，必须填全，否则不得分）
单站优化效果复测和抽查：市网优中心工程优化管理人员按照省公司网优中心统一要求，完成单站优化效果抽查，复测及后台指标验证数量为100%，上站核查数量比例不能低于（）。
A.20%
B.30%
C.40%
D.50%
男性，8岁，枕部着地，昏迷5分钟后清醒，并自己回到家中，其后出现头痛并呈逐渐加重伴呕吐1小时后不省人事，急送医院。查体：BP130/90mmHg，P65次／分，R15次／分。浅昏迷，右枕部头皮挫伤，左侧瞳孔4mm，对光反应消失；右侧瞳孔2.5mm，对光反应存在。
引起病人浅昏迷、左侧瞳孔散大最可能原因是（）
A.枕骨大孔疝
B.动眼神经麻痹
C.小脑幕切迹疝
D.颈髓损伤
E.右侧视神经损害