放射性的来源于（）和（）两种。_爱下问搜题

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问题填空题

放射性的来源于（）和（）两种。

答案

参考答案：天然的放射性、人工放射性

单项选择题

患者男，55岁。上腹痛3年，便血约250ml，伴晕倒。有冠心病病史3年。检查：血压100/70mHg，脉搏90次/分，神清，心律齐，无杂音，肝脾未及，肠鸣音活跃。

抢救时禁用的药物是（）

A.西咪替丁

B.生长抑素

C.奥美拉唑

D.垂体后叶素

E.去甲肾上腺素

完形填空

The other night, I had to go to a meeting, which lasted past my daughter’s bedtime. I _36__ home and was brushing my teeth when I __37_, and there on the bathroom mirror was a note in the __38__ of a heart. It said, “ Hi, Mom! I Love You. Laurel.” __39__, I cut a heart out of a piece of paper, and taped a(n) __40__ next to hers, saying, “ I Love You, Too, Laurel. Love, Mom.” Which she __41__ the next morning.
Our family has __42__ that by integrating (融合) writing into our __43__ activities, we become more thoughtful of each other. Meanwhile, our daughter is learning to enjoy writing and becoming a(n) __44__ writer.
While teaching in a primary school, I __45__ how influential parents can be as children learn to write. __46__ when our daughter first began to scribble (乱涂), I became __47__ by her work. I offered praise for her __48__, for I found that scribbling is far more complex and important than I had __49__. It’s obvious that her scribbles, __50__ being lovely art objects, showed a lot about her __51__ of the world of writing.
Gradually, our family began writing a great deal. I sensed that writing helped Laurel learn __52__ to read. As a matter of fact, by __53__ my own child and her friends and by reading professional books, I became more and more __54__ about how writing develops and how __55__ can help chidren become eager writers.

B．turned down

A．Immediately

A．disappointed

C．suggestions

D．rather than

C．understanding

B．discovering