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【单选题】
采用串行接口进行数据传输,字符的传输率为960字符/s,每个字符中包含1位起始位,1位停止位,7位数据位,1位奇偶校验位,则波特率为______波特。
A.
9600
B.
960
C.
6720
D.
672
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举一反三
【单选题】The author mentions Lilly Ledbetter's case to show that ______.
A.
she did not receive equal treatment as her male colleagues
B.
her complaint is not timely enough to be validated
C.
the new rule is problematic in practice due to its ambiguous wording
D.
there is pay discrimination against women at work
【单选题】给贮藏粮食的仓库中充入二氧化碳可以延长粮食贮藏的时间,这是因为(  )
A.
二氧化碳浓度高,增强了呼吸作用
B.
二氧化碳浓度高,抑制了呼吸作用
C.
二氧化碳浓度高,增强了蒸腾作用
D.
二氧化碳浓度高,抑制了蒸腾作用
【单选题】You are the administrator of your company's network. A user named Lilly prints dozens of documents daily from her Windows 2000 Professional computer. Lilly reports that she receives a dialog box annou...
A.
In the server properties of the printer system folder, clear the Notify when remote documents are printed option.
B.
In the server properties of the printers system folder, clear the Notify computer, not user, when remote documents are printed option.
C.
In the default printer properties, select the Portstab, and clear the Enable bidirectional support option.
D.
In the default printer properties, select the Advancedtab, and clear the Advanced printing features option.
【单选题】Lilly’s fond of traveling and she always keeps travel journal of what she does each day during her trip.
A.
the; the
B.
/; the
C.
the; a
D.
/; a
【简答题】Lilly’s new online business has been really ____ — she’s got lots of customers now. (success)
【单选题】给贮藏粮食的仓库中充入二氧化碳可以延长粮食贮藏的时间,这是因为
A.
二氧化碳浓度高,增强了呼吸作用
B.
二氧化碳浓度高,抑制了呼吸作用
C.
二氧化碳浓度高,增强了光合作用
D.
二氧化碳浓度高,抑制了光合作用
【简答题】于某是某粮库招用的劳务工人。9月23日晚上于某和其他工人一起将火车上的粮食搬运到粮场,于某负责在火车上将粮包抬到皮带输送机上。由于天气太热,于某脱掉衣服干,当于某一手扶住火车门框,另一只手触到皮带运输机架子时,突然触电,摔下火车死亡。 1.事故原因( ) A、皮带运输机零线上某处断线 B、于某没有严格按照操作规程干 C、不明原因 2.预防措施( ) A、加强员工安全教育 B、及时对各用电线路进行检...
【判断题】组合逻辑电路中一般应有 JK 触发器。
A.
正确
B.
错误
【单选题】在众多的环境致癌因素中化学性致癌因素约占 ( )
A.
60%
B.
70%
C.
80%
D.
90%
【简答题】()是指企业在以外币进行的各种交易过程中,由于汇率变动使折算为本币的数额增加或减少的风险。
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