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【单选题】
一种在儿童中非常流行的病毒感染导致30%被感染的儿童患了中耳炎。对细菌感染非常有效的抗生素对这种病毒却无能为力。然而,当因病毒感染而患中耳炎的儿童接受抗生素治疗后,中耳炎却得到了治愈。以下哪一项最好地解释了上文中明显的不一致?
A.
虽然有些抗生素不能杀死病毒,但另一些抗生素却可以杀死病毒。
B.
被病毒感染的儿童极易受到导致中耳炎的细菌的侵害。
C.
有许多没有感染的儿童也患了中耳炎。
D.
大多数病毒感染比细菌更难治疗。
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【判断题】古典文明包括古希腊文明、古罗马文明以及古埃及文明。()
A.
正确
B.
错误
【单选题】Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?
A.
Hydrochloric acid
B.
Chlorine
C.
Sulfuric acid
D.
Zinc chromate
【判断题】The DBMS can maintain the integrity of the database by not allowing more than one user to update the same record at the same time.
A.
正确
B.
错误
【单选题】Companies can maintain good business relations by abiding by their promises and agreements.
A.
coming up with
B.
breaking away from
C.
living up to
D.
getting rid of
【单选题】The DBMS can maintain the integrity of the database by allowing ______ to update the same record at the same time.
A.
more than one user
B.
no more than one user
C.
two customers with similar customer numbers
D.
company specialists
【单选题】Which of the following advantages doesn't the TRAM have?
A.
The TRAM can help maintain continuous measurements
B.
The instruments on the TRAM can be used for many times
C.
The TRAM weighs only 18 kilograms
D.
The TRAM can be operated from the ground
【单选题】常用分离培养军团菌的培养基是
A.
普通琼脂
B.
BCYE琼脂
C.
EMB琼脂
D.
TSI琼脂
E.
TTC肉汤琼脂
【多选题】启用多组织后,系统将可以提供哪些业务?
A.
创建组织机构信息
B.
进行组织间业务协同和组织结算
C.
定义组织间各种关系
D.
实现基础资料在组织间的共享和数据隔离
【简答题】Scholars maintain that social development can easily _____ language changes. A. bring forward B. bring about C. bring out D. bring up
【单选题】常用的分离培养军团菌的培养基是()
A.
血琼脂平板
B.
罗氏培养基
C.
活性碳酵母浸液琼脂(BCYE.
D.
巧克力色琼脂平板
E.
沙保氏培养基
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