题目内容
A．forB．atC．to
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第二节 完型填空
阅读下面短文，从短文后所给的[A]、[B]、[C]三个选项中选择能填入相应空白处的最佳选项。
A man went into a restaurant and ordered all the most expensive dishes. He ate the meal (1) great enjoyment. Then a small boy came into the restaurant and sat at the man's table. The waiter who (2) the man came up and said to him, "What would your little boy like, Sir？" “Oh, just an ice cream (冰淇淋)," the man said to the waiter. Then he (3) up and said to the waiter, I'm just going out to buy a newspaper."
The waiter gave the boy an ice cream. The boy ate it, and then stood up and walked (4) the door.
The waiter stopped him and said, "Excuse me, (5) your father hasn't come back and he hasn't paid for his meal or for your ice cream." “It has (6) to do with me," the boy said. "That man is not my father. I don't (7) know who he is."
The waiter was confused (迷惑). So the boy explained, "The man came up to me in the street and asked me (8) I liked ice cream. I told him I did. Then he (9) me to come into the restaurant at 2 o'clock and sit down at his table. He said he would give me (10) ."
(1)
A．anyB．littleC．some
一般地，在销售预测的指数平滑法中，平滑指数的取值通常在0．4～0．7之间。 ()
已知f'(x+1)=xex+1，则f'(x)=
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