单项选择题

The word （） means "exclusive control of a particular market that is marked by the power to control prices and exclude competition and that esp. is developed willfully rather than as the result of superior products or skill".

The word （） means "exclusive control of a particular market that is marked by the power to control prices and exclude competition and that esp. is developed willfully rather than as the result of superior products or skill".
A.duress
B.monopoly
C.void
D.patent

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多项选择题

‌下面关于He原子光谱和能级特点的描述哪些是正确的__________

A．光谱有两套，一套为单线，一套为多线，是由跃迁选择定则决定的；
B．存在几个亚稳态，是由跃迁规则决定的；
C．没有

态，是由泡利不相容原理决定的。
D．氦的基态

与第一激发态

之间能量差很大。

单项选择题

The phrase （） means rights of creators of copyrighted works generally recognized in civil law jurisdictions and, to a lesser extent, in some common law jurisdictions .

The phrase （） means "rights of creators of copyrighted works generally recognized in civil law jurisdictions and, to a lesser extent, in some common law jurisdictions".
A.good faith
B.wind up
C.moral right
D.pass off