双因素理论中，正确的说法是 ( )
— Is it better to be physically attractive or intelligent?
— .
— Do you prefer a portable or a clumsy 3D printer?
— .
Sometimes buyers only purchase some , tangible or intangible.
You can have eggs or hard-boiled.
As a rule, the buyer is responsible for a ship or booking the shipping space.
Goods are carried by several of transport--on road or rail, by sea or air.
— Hey, Derek, which do you think is harder to learn, marketing or designing?
—
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
10.关于双代号网络图绘制规则的说法，正确的是( )。
8.下列关于双代号网络计划绘图规则的说法，正确的有（ ）。
普通教育学在教育科学体系中，属于下面哪个学科（ ）。
Every child is unique. Don’t him or her to others.
— May I suggest the sales start on or about October 1?
— .
Actually, buyers are the group of people want to buy certain goods or services.
Prices may change quickly if supply or demand .
— I wonder whether I could accept this discount or not.
—
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