在20件同类产品中，有18件正品，2件次品，任意抽取3件的必然事件是（ ） A．

阅读理解。

     A man saw a boy standing beside a lake with a mirror (镜子)."Excuse me," he said "but could you

tell me what you're doing?"

    "I'm fishing."

    "With a mirror? Could you tell me how it works?"the man asked.

    "OK, but I want five dollars."

    The man ['w?ntid] to know the secret very much, so he handed the boy the money."Now show me

how it works," he said. "Well", the boy began, "you hold (拿) the mirror towards the ['?w?: t?], and

when a fish goes by, the sunlight in the mirror gives him a surprise. He stops and doesn't know what

to do, and then you catch him at once. "The man was surprised, "Can you really catch fish with the

mirror? How many did you catch?"

    "You're the [f?fθ] today!" replied the boy.

根据短文和音标写出下 * * 个单词。

1. Write out the word ____

2. Write out the word ____

3. Write out the word ____

4. Using ↖ or ↙mark the intonation (标出语调) of the following sentence: Can you really catch fish with

    the mirror?____

5. In the underlined sentences find one words that whose last sound can have incomplete plosion

   (失去爆破) ____

根据短文内容填入一个适当的单词。

6. The man wanted to ____  at the boy's mirror.

7. The boy may get ____ dollars  that day.

8. The man thought the boy ____ fish with the mirror.

9. This is a ____.

10. In fact no one can ____ in this way.

When administering an intramuscular injection to a neonate, which of the following muscles would the nurse consider as the best injection site

A. Deltoid.
B. Dorsogluteal.
C. Ventrogluteal.
D. Vastus lateralis.

指数型消极投资策略认为在有效市场中，( )。

A．任何积极型股票投资策略都不可能取得高于其风险承担水平的超额收益

B．少数积极型股票投资策略可能取得高于其风险承担水平的超额收益

C．多数积极型股票投资策略都不可能取得高于其风险承担水平的超额收益

D．只要投资策略合适就能取得高于其风险承担水平的超额收益

高铁血红蛋白血症所致发绀的描述错误的是（）

A.血液中高铁血红蛋白含量多于血红蛋白的1％时

B.血液中含有30g／I。高铁血红蛋白

C.高铁血红蛋白有携氧能力而无缺氧

D.无明显呼吸困难

E.中毒性高铁血红蛋白可为急性或慢性

工程量清单中的项目特征描述包括( )。

A．工程名称

B．涉及工程结构要求的内容

C．使用材质及规格

D．涉及正确计量的内容

E．具体的施工方法