更多"—The light in the office is still o"的相关试题:
[单项选择]—The light in the office is still on.
—Oh ,I forget ______.
A. turning it off
B. turn it off
C. to turn it off
D. having turned it off
[单项选择]The light is still on. Why not （）
A. turn it on
B. turn it off
C. turn on it
D. turn off it
[单项选择]-I am still working on my project.
-Oh, you'll miss the deadline. Time is ______.
[单项选择]区别3位OH和5位OH选用（）
A. 四氢硼钠
B. 盐酸镁粉
C. 三氯化铝
D. 锆盐.枸橼酸试液
E. 三氯化铁
[填空题]蒽醌类化合物酸性出强到弱的顺序为：（）＞含2个以上β-OH者＞含1个β-OH者＞含2个以上α-OH者＞（）。
[单项选择]LIGHT : COLOR ::
A. radiation: temperature
B. celerity : span
C. quality : quantity
D. sound : pitch
E. (E) strength : stress
[单项选择]DIAPHANOUS : LIGHT ::
A. visible : sight
B. unbreakable : glass
C. porous: liquid
D. slippery : glue
E. reflective: hamper
[填空题]（）可用于鉴别5-OH和6’-OH开查耳酮，阳性反应呈（）。
[单项选择]成人still病（）
A. 血清铁蛋白高，高热，皮疹，白细胞增高
B. RF阳性，抗SSB抗体阳性，尿pH值9.0
C. HLA-B27阳性
D. 补体C3，C4减少
E. 机工手
[不定项选择]已知NaOH+Al（OH）3→Na[Al（OH）4]。向集满CO2的铝制易拉罐中加入过量NaOH浓溶液，立即封闭罐口，易拉罐渐渐凹瘪；再过一段时间，罐壁又重新凸起。上述实验过程中没有发生的离子反应是（）。
A. CO2+2OH−→CO32−+H2O
B. Al2O3+2OH−+3H2O→2[Al（OH）4]−
C. 2Al+2OH−+6H2O→2[Al（OH）4]−+3H2↑
D. Al3++4OH−→[Al（OH）4]−
[单项选择]Ca（OH）2用于（）
A. 根尖切除术根尖搔刮术
B. 髓底穿孔修补术
C. 根尖倒充填术
D. 根管侧穿修补术
E. 根尖诱导成形术
[单项选择]Americans are still gaining weight though reducing the fat intake because __________.
A. they eat regular cookies instead of nonfat ones
B. they eat too much
C. they eat too much sugar
D. they eat low-fat crackers, soups
[判断题]可以选择直接从“开始”菜单上启动OffiCe或者从桌面上启动Office。
A.正确
B.错误
[单选题]如何让老版本的Office可以识别Office2007所建立的各种文件()?
A.将文档的扩展名修改为doc、xls、ppt等
B.安装IE7等工具,使其支持XML格式的文件
C.运行老版本Office的升级功能进行升级
D.到微软网站下载MicrosoftOfficeWord、Excel和PowerPoint2007文件格式兼容包
[单选题]If the aircraft in radio failure receives light signals provided by the controller during daytime, he should acknowledge tower transmission or light signals by _______ .
A.rocking the wings
B.blinking the landing light or navigation lights
C.rocking the wings first and then blinking the landing light
D.blinking the navigation lights
[单项选择]
中和25mlC[Ca（OH）2]＝0.3mol/L的Ca（OH）2溶液，需要C（H3P4O）＝0.25mol/L的H3P4O溶液（）
A. 10ml
B. 20ml
C. 50ml
D. 75ml
E. 40ml
[单项选择]Why is light coloring an advantage to large desert animals
A. It helps protect them from other dangerous animals.
B. It keeps them cool during the day.
C. It keeps them warm by reflecting light.
D. It helps them maintain a constant body temperature.
[单项选择]The problems themselves are still not truly strategic because the operation of the global environment is not affected and the survival of civilization is not at stake.
A. at risk
B. at issue
C. pent up
D. adhere to
