问题
单项选择题
绝对误差大，引用误差也随之变大，仪表的精确度就（）。
A．不高不低
B．高
C．低
D．不能判断
答案
参考答案：C
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绝对误差大，引用误差也随之变大，仪表的精确度就（）。
A．不高不低
B．高
C．低
D．不能判断
参考答案：C
The train shakes back and forth, its wheels making a loud noise against the tracks. Outside the window the freezing cold of winter rules. The carriage is filled with cold, ___1___ passengers. Suddenly a little boy ___2___ his way through the grown-up legs and sits down by the window. He is all alone among the ___3___ grown-ups. What a brave child, I think. His father ___4___ very strange happens suddenly. The ___5___ little boy slides down from his seat and leans his hand on my knee. ___6___, I think that he wants to ___7___ me and return to his father, so I help him to stand up. But instead he leans forward and holds his ___8___ up towards mine. He wants to say something to me, I think. I lower my head to receive the ___9___. Wrong again! What I do receive is a ___10___ kiss on the cheek. The boy calmly returns to his seat, leans back and continues looking out of the window. I am ___11___. What just happened? A child is kissing ___12___ grown-ups on the train. How can anybody want to kiss such a man that has so much beard? Soon enough, all of my neighbors are certainly ___13___. Nervous and a little surprised, we ___14___ at the father. When he sees our questioning ___15___ as he gets ready for his stop, he offers a clue(线索). “He’s so happy to be alive,” the father says. “He has been very sick.” Father and son ___16___ into the crowd moving toward the exit. The doors close and the train goes on. On my cheek I can still ___17___ the child’s kiss—a kiss that has triggered(触发) some soul-search inside me. How many ___18___ kissing each other from the joy of being alive? How many even give much thought to the privilege(特权)of ___19___? The little kisser had taught us a sweet but serious lesson: Be careful you don’t let yourself ___20___ before your heart stops!
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