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【判断题】
与病毒相比,蠕虫的最大特点是消耗计算机内存和网络带宽。A.
正确
B.
错误
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举一反三
【单选题】用草酸钠标定高锰酸钾溶液时,刚开始时褪色较慢,但之后褪色变快的原因是( )。
A.
温度过低
B.
反应进行后，温度升高
C.
在70~80 °C 恒温条件下滴定，且反应生成的Mn2+有自动催化作用
D.
滴定一开始就加入淀粉指示剂
【单选题】Which is the best way to prove that no transactions are missing or wrong at the end of the day?
A.
We can do that by checking the total debits and the total credits to see whether they are in the state of balance.
B.
We can examine all the transactions carefully and find the wrong records.
C.
We can balance the total debits and the total credits by posting them again.
D.
We can post all the entries again and correct the mistakes.
【单选题】诱发药源性疾病的药物因素包括
A.
药物本身作用、药物相互作用
B.
药物制剂、药物相互作用
C.
药物制剂、药物的使用
D.
药物本身作用、药物相互作用、药物制剂和药物的使用
E.
药物本身作用和药物的使用
【单选题】It was luck again, according to Nina, that brought her the role in Mute Wife ______ she is best known.
A.
which
B.
in which
C.
for which
D.
to which
【多选题】用基准物质草酸钠标定高锰酸钾标准溶液时,需要严格控制的滴定条件有( )。
A.
温度保持在70-85℃
B.
用稀硫酸调节控制溶液的pH在强酸性
C.
滴定速度要与反应速度同步，开始时慢然后稍快终点附近慢
D.
滴定至溶液呈微红色30s不褪色为终点
【单选题】Task 2 Watch the episode again and choose the best answer to each question. 1. Which is not mentioned in the video that can lead to dental emergencies?
A.
Sports injuries.
B.
Falls.
C.
Accidents.
D.
Dental caries.
【简答题】How many days does Diana plan to go to Paris?
【简答题】在VB.NET中,假设己与“教学数据库”建立连接myconn,且定义了 Command对象 MyComm,则调用存储过程 sc_procl 的命令是 MyComm=new Sql.SqlCommand ( , )。
【简答题】Listen to the passage again and choose the best answers to the following questions. Which
is the most difficult challenge for parents in handling children’s music
lessons?A. Choosing the instrument. B...
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