重要提示: 请勿将账号共享给其他人使用,违者账号将被封禁!
查看《购买须知》>>>
找答案首页 > 全部分类 > 职业资格考试
搜题
网友您好, 请在下方输入框内输入要搜索的题目:
搜题
题目内容 (请给出正确答案)
[主观题]

Questions are based on the following passage.Salt is as necessary to life as water. In man

Questions are based on the following passage.

Salt is as necessary to life as water. In many areas of Africa people once drank the urine (尿)

of animals because they had no other source of salt. Without salt, human beings die.

The human body demands that the amount of salt in the blood always stay the same. When the body does not get enough salt, it protects itself by letting less salt leave the body in urine and sweat. But it carmot reduce this output to zero. Some salt is always escaping. On a complete saltless diet, like that of some people in Africa, the body steadily loses small amounts of salt through the kidneys (肾) and sweat glands (腺)It then tries to adjust to this loss by speeding its secretion (分泌) of water. (78) In this way, the body attempts to keep the amount of salt in the blood at the necessary level. The result is a slow drying up of body and,inally,death. The person dies of thirst.

In cases where there is little or no water to drink, the body tries to do the opposite thing. Again, it must keep the salt level in the blood constant. Because it has little water, it attempts to stop water from leaving the body and to increase its secretion of salt. But, as with the escaping salt, it cannot be completely successful. Some water still leaves and the person eventually dies of thirst. In short, the body's normal needs for salt and for water are both parts of the same important need to keep the salt level in the blood constant.

Some African people once drank animal urine __________ 查看材料

A.when they were going to die

B.because they were thirsty

C.because there was little salt

D.because they were short of water

查看答案
更多“Questions are based on the following passage.Salt is as necessary to life as water. In man”相关的问题

第1题

In order to adjust to the loss of salt, the body __________ 查看材料

A.loses some blood

B.speeds up its secretion of water

C.speeds up its secretion of salt

D.is drying up slowly

点击查看答案

第2题

Which of the following statements is NOT the result of a lack of salt in the body? 查看材料

A.The body secretes more water.

B.The body dries up.

C.The person dies of thirst.

D.The person gets fatter.

点击查看答案

第3题

What does the word "constant" (Line 2, ParA.3) mean in the passage? 查看材料

A.The same.

B.Amount.

C.Going up and down.

D.Changing.

点击查看答案

第4题

What is the main idea of the passage? 查看材料

A.Salt is very important.

B.If their blood salt level is not constant, human beings may die.

C.The amount of salt in the body is secreted.

D.People can die of thirst.

点击查看答案
下载上学吧APP
客服
TOP
重置密码
账号:
旧密码:
新密码:
确认密码:
确认修改
购买搜题卡查看答案
购买前请仔细阅读《购买须知》
请选择支付方式
微信支付
支付宝支付
选择优惠券
优惠券
请选择
点击支付即表示你同意并接受《服务协议》《购买须知》
立即支付
搜题卡使用说明

1. 搜题次数扣减规则:

功能 扣减规则
基础费
(查看答案)
加收费
(AI功能)
文字搜题、查看答案 1/每题 0/每次
语音搜题、查看答案 1/每题 2/每次
单题拍照识别、查看答案 1/每题 2/每次
整页拍照识别、查看答案 1/每题 5/每次

备注:网站、APP、小程序均支持文字搜题、查看答案;语音搜题、单题拍照识别、整页拍照识别仅APP、小程序支持。

2. 使用语音搜索、拍照搜索等AI功能需安装APP(或打开微信小程序)。

3. 搜题卡过期将作废,不支持退款,请在有效期内使用完毕。

请使用微信扫码支付(元)
订单号:
遇到问题请联系在线客服
请不要关闭本页面,支付完成后请点击【支付完成】按钮
遇到问题请联系在线客服
恭喜您,购买搜题卡成功 系统为您生成的账号密码如下:
重要提示: 请勿将账号共享给其他人使用,违者账号将被封禁。
发送账号到微信 保存账号查看答案
怕账号密码记不住?建议关注微信公众号绑定微信,开通微信扫码登录功能
警告:系统检测到您的账号存在安全风险

为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!

- 微信扫码关注上学吧 -
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反上学吧购买须知被冻结。您可在“上学吧”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
- 微信扫码关注上学吧 -
请用微信扫码测试
选择优惠券
确认选择
谢谢您的反馈

您认为本题答案有误,我们将认真、仔细核查,如果您知道正确答案,欢迎您来纠错

上学吧找答案