在SLA中所包含的SLS需要针对QOS确定哪些参数（） A.详细的性能参数如期望的带

计算：a⁴．a^{（    ）}=a³．a^{（    ）}=（-a）⁵（-a）^{（    ）}=a¹⁰；

（-y）²·（-y）³=（    ）；

-y²·（-y）³=（    ）；

b·b^m·（    ）=b^3m+1；

（-a）³．（    ）=-a¹⁰；

（a-b）³·（a-b）⁴=（    ）。

While making rounds in a senior citizens’ housing complex, the visiting nurse discovers one of her clients sobbing in her darkened apartment. On questioning the client, an 85- year-old widow, the nurse learns that her pet cat of 15 years had been put to sleep the day before. What’s the nurse’s best response ？（）

A．"It shouldn’t be hard to find another cat. You’ll feel better once you have another pet. "

B．"It was only a cat. Why are you allowing yourself to be so upset It would be different if it were a person. "

C．"I’m so sorry that your pet had to be put to sleep. I know how important your cat was to you. "

D．"It’s probably best for the cat because it was so old and ill. "

Mcburney点见于________________，压痛提示________。

小儿急性白血病治疗的关键是()。

A．支持疗法

B．联合化疗

C．放射治疗

D．免疫治疗

E．骨髓移植