某汽车企业生产15-8型号汽车，年产量10000台，每台15-8型号汽车需要A1-001型号齿轮1件。该企业年初运用在制品定额法来确定本年度车间的生产任务，相关信息及数据见下表：在制品定额计算表

根据市场和企业状况，装配车间15-8型号汽车的投入量调整为15000台，则齿轮加工车间的A1-001型号齿轮出产量是( )个。

A:14000 B:14500 C:15000 D:16000

患者男，78岁，因“发热伴咳嗽,咳痰24h”急诊入院。24h前出现寒战，体温38℃，口服对乙酰氨基酚（剂量不详）未见好转，体温升至38.6℃，并且出现咳嗽,气短,气促。送至急诊室时已处于昏睡状态。有老年痴呆病史，未予治疗。查体：BP78/42mmHg，HR119次/min，律齐，R30次/min；无黄疸，黏膜干燥。右肺背部可闻及响亮的干性啰音，触觉语颤增强；腹部柔软，无压痛，无包块及肝脾肿大，无外周水肿。实验室检查：Na134mmol/L，K5.3mmol/L，Cl96mmol/L，HCO14mmol/L，BUN31mmol/L，Scr1.3mmol/L，血糖13.4mmol/L；动脉血气：pH7.32，PaCO22mmHg，PaO62mmHg；粪隐血试验（＋）。胸部X线片：右中下肺肺炎。ECG：窦性心动过速，无心肌缺血。

与患者P(A-a)O最接近的值是

A:15 B:25 C:35 D:45 E:55 F:65

A Powerful Influence

    There can be no doubt at all that the Internet has made a huge difference¹ to our lives. Parents are worried that children spend too much time playing on the Internet, hardly (1) ______ doing anything else in their spare time. Naturally, parents are (2) ______ to find out why the Internet is so attractive, and they want to know if it can be (3) ______ for their children. Should parents worry if their children are spending that much time (4) ______ their computers?

    Obviously, if children are bent over their computers for hours², (5) ______ in some game, instead of doing their homework, then something is wrong. Parents and children could decide how much use the child should (6) ______ of the Internet, and the child should give his or her (7) ______ that it won’t interfere with homework. If the child is not (8) ______ to this arrangement, the parent can take more drastic (9) ______ dealing with a child’s use of the Internet is not much different from (10)______ any other sort of bargain about behaviour.

    Any parent who is (11) ______ alarmed about a child’s behaviour should make an appointment to (12) ______ the matter with a teacher. Spending time in front of the screen does not (13) ______ affect a child’s performance at school. Even if a child is (14) ______ crazy about using the Internet, he or she is probably just (15) ______ through a phase, and in a few months there will be something else to worry about!

词汇：

drastic /ˈdræstɪk / adj．严厉的，极端的

phase /feɪz / n．阶段，时期

arrangement /əˈreɪndʒmənt /n．安排

注释：

1．…make a huge difference…：……造成巨大改变……

空15

A:going B:passing C:travelllng D:walking

A律13折线通常采用的量化级数为（）。

A:16 B:256 C:128 D:2048

采用13折线A律编码时，抽样脉冲值为-1025Δ段落码为（）

A:1110； B:110； C:111； D:101。

A律13折线通常采用量化级数为（）

A:256 B:128 C:64 D:512

A律13折线第6段的量化信噪比改善量为（）

A:8dB B:4dB C:2dB D:0dB

A律13折线将X，Y轴都分成（）段

A:8 B:7 C:9

我国对小信号的量化统一采用13折线A律制式，其压缩律A值为（）。

A:87.6 B:78.6 C:67.8 D:76.8