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【单选题】
在定压下影响物质的表面吉布斯函数的因素是( )。A.
表面积 A s
B.
表面张力 γ
C.
表面积 A s 和表面张力 γ
D.
没有确定的函数关系
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【单选题】约翰看起来是个好人。即便如此,我还是不信任他。
A.
John seems to be a nice person. Even so, I don’t trust him.
B.
John seems to a nice person. Even so, I don’t trust him.
C.
John seems be a nice person. Even so, I don’t trust him.
D.
John seems to be a nice person ,s o, I don’t trust him.
【简答题】设Z(t)=X(t)+iY(t)是一复随机过程，且EX(t)，EY(t)存在，则定义其均值与协方差函数为 EZ(t)=EX(t)+iEY(t) 若E|Z(t)| 2 ＜+∞时，则称Z(t)是一复二阶矩过程。 试证：若Z(t)=X(t)+iY(t)为一复二阶矩过程时有
【单选题】— Would you be able to go to the party? — ____. [ ]
A.
I don't ex4pect
B.
I'm afraid not
C.
I don't think so
D.
I believe not
【简答题】根据精神分析学派的理论,学龄前儿童能够通过游戏,在自己的水平上处理和解决心理冲突。游戏特别是_________,能为儿童提供应付消极情感和解决情绪、情感冲突的途径。
【单选题】约翰看起来是个好人。即便如此,我还是不信任他。
A.
John seems (to be) a nice person. Even if, I don’t trust him.
B.
John looks (to be) a nice person. Even though, I don’t trust him.
C.
John seems (to be) a nice person. As if, I don’t trust him.
D.
John seems (to be) a nice person. Even so, I don’t trust him.
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