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听力原文：M: Do you often hear from your family? W: I used to get a lot of letters, but now they're getting fewer. My parents are really busy with their work. What do we learn from the woman's words?A.
She has more letters now than before.
B.
She doesn't have so many letters as before.
C.
She often hears from her family now.
D.
She is used to having a lot of letters.
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【单选题】某肺心病患者伴水肿,用速尿利尿后,其血气分析及电解质测定结果如下:pH7.34,PaCO266mmHg,HCO3-36mmol/L,Na+140mmol/L,Cl-75mmol/L,试分析属何种酸碱失衡?
A.
单纯性呼吸性酸中毒
B.
呼吸性酸中毒合并代谢性碱中毒
C.
呼吸性酸中毒合并AG增高型代谢性酸中毒
D.
呼吸性酸中毒合并AG正常型代谢性酸中毒
E.
以上都不是
【简答题】目前部分汽车已经使用乙醇汽油。其中乙醇可以由含淀粉的农产品如玉米等发酵、蒸馏而得。 (1)完成下列化学方程式： 淀粉＋水 葡萄糖：___________________________________ 葡萄糖 乙醇：____________________________________。 (2)已知在盛有葡萄糖溶液的某容器中加入酵母菌，不久溶液中所含180 g葡萄糖全部消耗完。将此过程中产生的所...
【单选题】What does the man mean?
A.
He wants to mail some letters.
B.
He wants to see the new stamps.
C.
He wants to know the cost of sending a letter.
【单选题】阅读下面的程序，其时间复杂度为_________?intindex=5;intcondition=1;if(condition==1)thenindex++;elseindex--；fori=1to100forj=1to200index=index+2;
A.
O(1)
B.
O(n)
C.
D.
O(n*log n)
【简答题】A．Because he wants to know some news. B．Because he wants to see the house ads. C．Because he wants to find a job. D．Because he wants to please his wife.
【单选题】乙醇汽油(汽油中加入一定比例的乙醇)的使用可以缓解石油危机。从玉米中提取的淀粉可以通过发酵产生乙醇。下列过程中没有发生化学变化的是（ ）
A.
玉米的生长
B.
淀粉的发酵
C.
汽油中加入乙醇
D.
乙醇的燃烧
【单选题】某肺心病患者伴水肿，用速尿利尿后，其血气分析及电解质测定结果如下：pH7．34，PaCO2 66mmHg，HCO3-36mmol／L，Na+140retool／L，Cl-75mmol／L，病人属何种酸碱失衡
A.
单纯性呼吸性酸中毒
B.
呼吸性酸中毒合并代谢性碱中毒
C.
呼吸性酸中毒合并AG增高型代谢性酸中毒
D.
呼吸性酸中毒合并AG正常型代谢性酸中毒
E.
呼酸合并代酸和代碱的三重酸碱失衡
【单选题】某肺心病患者伴水肿，用速尿利尿后，其血气分析及电解质测定结果如下： 试分析属何种酸碱失衡？（）
A.
单纯性呼吸性酸中毒
B.
呼吸性酸中毒合并代谢性碱中毒
C.
呼吸性酸中毒合并AG增高型代谢性酸中毒
D.
呼吸性酸中毒合并AG正常型代谢性酸中毒
E.
以上都不是
【简答题】(D) Jim goes to Tokyo. He wants to see his aunt. But when he walks out of the station, he can’t find his way. The city is now quite different. He sees a man outside a police station, so he goes up to ...
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