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【单选题】
计算机病毒按其感染方式,可分为( )。
A.
引导病毒、文件型病毒
B.
混合型病毒病毒
C.
宏病毒、 Internet 病毒(网络病毒)
D.
都是
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举一反三
【判断题】Narrative writing usually follows a chronological order.
A.
正确
B.
错误
【单选题】下列关于环核苷酸的叙述错误的是()。
A.
cAMP与cGMP的生物学作用相反
B.
重要的环核苷酸有cAMP和cGMP
C.
cAMP是一种第二信使
D.
cAMP分子内有环化的磷酸二酯键
【简答题】A narrative uses tools such as flashbacks , flash-forwards , and transitions that often build to a climax . T he focus of a narrative is the () . A narrative is usually arranged ( ) . (2 blanks)
【多选题】A good narrative usually starts with a good hook-the attention getter because it sets the stage for the story. Which two sentences would not be good hooks for a narrative essay?
A.
The roar of race-car engines ripped through the blazing heart of the day.
B.
The gleaming snow lay over the treacherous mountain like a soft white blanket, making the terrain seem safe instead of deadly.
C.
The Russian dictionary that we use in our language class has 500 pages.
D.
Amber never expected to hear the deadly sound of a rattlesnake in her kitchen garden.
E.
Whales are by far the largest marine mammals.
【简答题】A narrative essay usually follows ___ order and uses ___ .
【单选题】一次回风集中式空调系统,在夏季由于新风的进入所引起的新风冷负荷应为新风质量流量与下列哪一项的乘积?
A.
室内状态点与送风状态点的焓差
B.
室内状态点与混合状态点的焓差
C.
新风状态点与送风状态点的焓差
D.
室外状态点与室内状态点的焓差
【单选题】可用于静脉注射用乳剂的乳化剂的是
A.
泊洛沙姆188
B.
司盘60
C.
吐温80
D.
十二烷基硫酸钠
E.
蔗糖脂肪酸酯
【简答题】Fill in the blanks based on the materials in the text book given. A narrative essay, as a story, should have a plot (including _______________, _________________, and ________________), a ____________...
【单选题】一次回风集中式空调系统,在夏季由于新风的进入所引起的新风冷负荷应是新风质量流量与下列哪一项的乘积
A.
室内状态点与送风状态点的焓差
B.
室内状态点与混合状态点的焓差
C.
新风状态点与送风状态点的焓差
D.
室外状态点与室内状态点的焓差
【简答题】下列选项中,属于风险评估工作的是( )。
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