解方程:(1)(x-1)2-4=0(2)y(y+1)=3

题型:解答题

问题:

解方程:(1)(x-1)2-4=0                        (2)y(y+1)=3

考点:一元二次方程的解法
题型:解答题

读下面的对话,并作对话后面的选择题。

Waiter: May I help you?

Frank: Yes, please. I'd like some a hamburger and a glass of milk.

Waiter: Sorry. We don't have any. Our restaurant is a Chinese restaurant.

           We only have Chinese food. We have dumplings, rice, noodles, fish,

            and vegetables. Dumplings are delicious. Would you like some dumplings?

Frank: How much for one jin?

Waiter: Ten yuan.

Frank: OK. I'll have one jin.

Waiter: It's too much.

Frank: Then I'll have a half. What would you like, Jack?

Jack: I'd like rice and fish.

1. What do they have in the restaurant? They have _____.

A. donuts and hot dogs

B. hamburgers and French fries

C. rice and dumplings

D. milk and vegetables

2. Frank wants to eat _____.

A. a sandwich and a glass of milk

B. a hamburger and a glass of milk

C. noodles and dumplings

D. vegetables and rice

题型:解答题
— Excuse me, sir. Would you do me a favour?
— Of course. What is it?
— I _____ if you could tell me how to fill out this form.

A. had wondered
B. was wondering
C. would wonder
D. did wonder
题型:解答题

合同法的最基本原则是( )

A.合法原则

B.诚实信用原则

C.鼓励交易原则

D.合同自愿原则

题型:解答题

念珠菌性 * * 炎的病因是()。

A.多见于孕妇、糖尿病妇女

B.接受大量雌激素治疗者

C.长期应用广谱抗生素者

D.长期应用肾上腺皮质激素者

E. * * 酸性降低者

题型:解答题

如图所示的真空辐射炉,球心处有一黑体加热元件,试指出①,②,③3处中何处定向辐射强度最大?何处辐射热流最大?假设①,②,②处对球心所张立体角相同。

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