写出下列反应的化学方程式： （1）实验室制氧气______． （2）用稀盐酸除去

已知{b_n}是公比大于1的等比数列，b₁，b₃是函数f(x)=x²-5x+4的两个零点，

（Ⅰ）求数列{b_n}的通项公式；

（Ⅱ）若数列{a_n}满足a_n=log₂b_n+b+2，且a₁+a₂+a₃+…+a_m≤63，求m的最大值。

IS曲线向右移动会增加总需求并降低利率。

3周龄蛋雏鸡，病鸡锁颈限闭，嗜睡，羽毛松乱，两翅下垂，食欲不振或废绝，气喘，甩鼻，眼结合膜和鼻腔带有浆液性分泌物。部分鸡腹部膨大下垂，行动迟缓，严重者呈企鹅状，腹部触诊有液体波动。

若某一兽医在进行一系列的检查后发现病鸡存在诊断本病为浆膜炎，若要快速确定本病的病原，需要采取的措施是（）

A．取粪样进行寄生虫检查

B．取粪样进行细菌学检查

C．采血进行血象检查

D．取腹腔液进行涂片染色镜检

E．采血进行细菌分离鉴定

下列对文学名著的评点不正确的一项是（）

A、《童年》是高尔基以自身经历为原型创作的自传体小说三部曲中的第一部

B、《鲁滨孙漂流记》的主人公鲁滨孙在小人国、大人国历险多年，吃尽千辛万苦

C、《水浒》中的英雄性格各不相同，但在“义”这一点上却是共同的

D、《格列佛游记》用虚构的情节和幻想的手法，批判当时英国统治阶级的腐败与罪恶

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!

Ⅱ．完型填空/Cloze

A．packed

B．concerned

C．marked

D．lined