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【多选题】
下列哪些主题属于违反专利法第5条规定而不能被授予专利权的主题：（）。A.
动物胚胎干细胞
B.
克隆的人或克隆人的方法
C.
人受精卵
D.
动物细胞
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反馈参考答案：
举一反三
【简答题】某建筑场地方格网、地面标高如图,格边长a=20m。泄水坡度ix =2‰,iy=3‰,不考虑土的可松性的影响,确定场地的挖方、填方总量。
【单选题】In front of the gate of the park ____ like an umbrella covering the entrance.
A.
an old pine tree stood
B.
an old pine tree did stand
C.
did an old pine tree stand
D.
stood an old pine tree
【简答题】某建筑场地方格网、地面标高如图,方格边长a=20m,计算场地的初步设计标高?
【多选题】下面关于握手礼的说法哪些是正确的（）。
A.
握手的顺序主要取决于"尊者优先"原则
B.
社交场合应由先到者先伸手为礼
C.
客人告辞时，应由客人先伸手为礼
D.
职位低的人与职位高的人握手时应先伸手为礼
【单选题】The old hostess stood ______ for a moment when she saw a beggar appear before her suddenly.
A.
surprising
B.
to surprise
C.
surprised
D.
having surprised
【单选题】Reading comprehension: Make the best choice according to Text B. Why did the hostess ask the three old men to come in and have something to eat?
A.
Because they were old.
B.
Because they wanted to have a talk with the family.
C.
Because the hostess thought they must be hungry.
D.
Because they were important to the family.
【单选题】对于状态函数的描述,下列说法中哪个是不恰当的?( )
A.
状态函数是状态的单值函数
B.
状态函数的改变值只取决于始、终态,与变化途径无关
C.
状态函数的简单组合(加减乘除)必然也是状态函数
D.
状态函数的微分是全微分
【单选题】Why did the bus hostess go to another bus?
A.
To compare experience with the hostess on that bus.
B.
To get some orders.
C.
To find if there were some vacant seats.
D.
To fetch some more egg-salad sandwiches.
【单选题】Why did the hostess ask the three old men to come in and have something to eat?
A.
Because they were old .
B.
Because they wanted to have a talk with the family.
C.
Because the hostess thought they must be hungry.
D.
Because they were important to the family
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