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【判断题】
乳酸的酸味特点是酸中带有刺激性臭味。A.
正确
B.
错误
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举一反三
【简答题】请简述跨境B2B模式的业务流程
【判断题】A self-executing treaty is one that contains a provision that says the treaty will apply in the parties’ municipal courts once the parties have adopted domestic enabling legislation.
A.
正确
B.
错误
【简答题】请简单解释Python中 staticmethod(静态方法)和 classmethod(类方法), 并分别补充代码执行下列方法。 class A (object) : def foo (self, x) : print( "executing foo(%s, %s)" % (self,x)) @classmethod def class_foo (cls, x) : print( "execut...
【单选题】Which of the following best describes a self-executing treaty?
A.
It is a treaty that requires state parties to enact enabling legislation before it becomes effective domestically.
B.
It is a treaty containing a term that says that it is directly effective within the signatory states upon ratification.
C.
It is a treaty adopted according to the constitutional provisions of the ratifying state.
D.
It is a treaty or international agreement entered into by a state’s executive without following the state’s constitutionally required ratification procedure.
【多选题】细胞质膜是紧贴细胞壁内侧.包围着细胞质的一层柔软.脆弱.富有弹性的半透性薄膜, 厚约 7-8nm,由磷脂(占 20%-30%)和蛋白质(占 50%-70%)组成.其主要功能有:
A.
控制细胞内外的物质的运送和交换
B.
维持细胞正常的渗透压的屏障作用;
C.
合成细胞壁各种组分(肽聚糖.脂多糖和磷壁酸)和荚膜等大分子的场所;
D.
进行氧化磷酸化和光合磷酸化的产能基地;
E.
传递信息
F.
鞭毛的着生点和提供其运动的能量.
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