【简答题】在 0 °C时,一只烧杯中盛有水,水上浮着两块冰,问水和冰组成的系统中有几相?如果撒入食盐,保持系统的温度仍为 0 °C不变,直至冰和食盐全部溶解(此时,冰点下降),此时系统中有几相?如果再加入一些硝酸银 溶液,有什么现象发生?此时系统有几相?如果还加入一些 四氯化碳 ,又将发生什么现象?此时系统为几相?
【单选题】体育教师专业素质评价包括的三方面内容是职业道德、教学能力和
【单选题】听力原文:M: Don't feel so bad about yourself. It happens. You don't really mean you want to quit this job, do you? W: Well, I sure want to. But I have a big family to support, maybe I'd better give it a s...
A.
Find a second job as a supplement.
B.
Come back again to apply for the same job.
C.
Think about whether she will really resign or not.
D.
Apply for an additional part-time job.
【单选题】设有一个 Java 小程序,源程序名为 FirstApplet.java ,其 class 文件为 FirstApplet.calss ,则运行该小程序的命令为( )
B.
javac FirstApplet.java
C.
appletviewer FirstApplet.java
D.
appletviewer FirstApplet.html
【单选题】设有一个 Java 小程序,源程序名为 FirstApplet.java,其 HTML 文件为 FirstApplet.html,则运行该小程序的命令为。( )
B.
javac FirstApplet.java
C.
appletviewer FirstApplet.java
D.
appletviewer FirstApplet.html
【单选题】体育教师教学基础素养的评价主要包括体育教师的教道德、( )掌握、教育科研能力三个方面。
【单选题】教师现代教育技术能力包括四个方面的内容,即媒体技术能力、【 】、教学实践能力和评价研究能力
【单选题】what I don't have, I don't feel poor.