皮皮学，免费搜题
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搜题
【单选题】
付款人对收款人委托收取的款项拒绝付款的，接到付款银行发出通知的次日起（ ）内出具拒绝证明。A.
3日
B.
5日
C.
10日
D.
15日
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【简答题】What is the core of a Grammar-Translation classroom?
【多选题】What is accurate about the heater core?
A.
The heater core looks like a small version of a radiator, connected to the cooling system with a pair of rubber hoses.
B.
A fan called a blower,draws air through the heater core and directs it through the heater ducts to the interior of the car.
C.
One hose brings hot coolant to the heater core and the other hose returns the coolant back to the engine.
D.
If the coolant is not hot enough,the flow to the radiator is blocked and fluid is directed back to the heater core via a bypass system.