方程2x2-5x-3=0根的情况是（ ） A．方程有两个不相等的实根 B．方程有

One day while a girl was walking in the woods she found two starving songbirds. She took them home and put them in a small (16) She cared for them and felt great love for them.

Once the (17) and per of the two birds flew from the cage. Therefore, (18) he flew close, she grasped him (19) She felt glad, but suddenly she felt the bird go limp. She opened her hand and (20) in horror at the dead bird.

She noticed the other bird moving back and forth on the edge of the cage. She could feel his great need for (21) She lifted him from the cage and (22) him softly into the air. The bird circled once, twice, three times.

The girl watched delightedly at the bird’ s enjoyment. Her heart was no longer (23) with her loss. Suddenly the bird flew closer and (24) softly on her shoulder. It sang the sweetest melody that she had ever heard.

The fastest way to (25) love is to hold on it too tightly, while the best way to keep love is to give it WINGS!

19().

A.gently 

B.freely 

C.elegantly 

D.wildly

I met Professor Green in the street____ and he told me he would soon leave for Britain.

A．some day

B．the day

C．in the day

D．the other day

(由单选或多选组成。)

乙是A市的建材经销商，因资金周转困难，便从A市甲处借了50万元人民币，购买了一批建材，并销售给了B市的丙，约定价款为60万元人民币，但丙来付款。乙与丙约定的合同履行地在A市；后来，甲要求乙还钱，乙说因为丙没有支付贷款，所以无力偿还。鉴于此，甲欲直接起诉丙，要求其支付50万元。请回答以下问题。

法院如果判决丙支付货款，那么以下何种做法是正确的( )

A．判决丙直接将货款60万元交付给甲，甲扣除50万元及利息后，将余下的钱支付给乙

B．判决丙直接将货款60万元交付给乙，乙将50万元并加上利息支付给甲

C．判决丙直接将50万元及利息支付给甲，并将剩下的10万元货款支付给乙

D．判决丙将50万元及利息支付给甲

钢筋混凝土框架结构，总高度H=48m，经计算已求得第6层横梁边跨边端的弯矩标准值如下表所示。
题64表

荷载类型	永久荷载	楼面荷载	风荷载	地震作用
弯矩值(kN·m)	-25	-9	18	30

计算该处截面配筋时所需弯矩设计值M(kN·m)，其与下列( )项数值最为接近。

A．-74.4
B．-79.44
C．-89.5
D．-76.9

下列气压带、风带容易产生降水的是（）

①极地高气压带

②赤道低气压带

③盛行西风带

④副热带高气压带

⑤信风带

⑥副极地低气压带

⑦极地东风带

A.①②③⑤

B.②④⑤⑥

C.②⑤⑥⑦

D.②③⑥