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问题 单项选择题

Looser带（假骨折线）是诊断下述哪种疾病的可靠征象（）

A.Paget病（畸形性骨炎）

B.骨质软化症

C.甲状旁腺功能减退

D.骨纤维异常增殖症

E.石骨症

答案

参考答案：B

多项选择题

下列元素含量符合牌号QT450-10原铁水成分要求的是（）

A.C=3.8%

B.C=2.1%

C.C=3.7%
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单项选择题

C


Jill lived with her grandma. The old woman was p enough that she could do everything herself at home.
As soon as Jill began to tidy the rooms or wash something, her grandma stopped her and told her to work hard at her lessons. Jill had to listen to her grandma and spent all her time on her study. So she went to college at last.
Now the girl has left college. She did well in all her subjects and easily found work in Mr. Brown’s company. She was sure Mr. Brown would put her in an important position(位置).
On the first day the boss gave her a broom and said, "Your first work is to sweep the offices. "
"What" the girl called out in surprise," I’m a college student, you know. "
"I’m sorry I don’t know that. Here, give me the broom and let me show you!\

______, so she was surprised.

A．Mr. Brown didn’t know Jill was a college student

B．Mr. Brown didn’t know Jill was good at her subjects

C．Mr. Brown didn’t like Jill at all

D．Mr. Brown told Jill to be a cleaner
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