( )铁路营运里程超过了3900千米,密度居全国第一。
— 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.
Goods are carried by several of transport--on road or rail, by sea or air.
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
Prices may change quickly if supply or demand .
— I wonder whether I could accept this discount or not.
—
抵达景点后的导游服务阶段,地方导游员应做好以下( )工作
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