某同学为迎接校运动会,反复练习100m跑后,觉得腿部酸痛,其练习方法没有问题,没有造

题型:单项选择题

问题:

某同学为迎接校运动会,反复练习100m跑后,觉得腿部酸痛,其练习方法没有问题,没有造成肌肉损伤,很可能是因为体内积累了()

A.酒精和二氧化碳

B.乳酸和二氧化碳

C.酒精

D.乳酸

考点:高中生物呼吸作用呼吸作用题库
题型:单项选择题

男性,68岁。间歇性上腹部隐痛伴反酸、嗳气、消瘦15年,进食后恶心、频繁呕吐3天,呼吸困难1天就诊。实验室检查:血pH7.55,PaCO257mmHg,PaO63.9mmHg,HCO-352.6mmol/L。Na+141mmol/L,K+2.5mmol/L,C-l72mmol/L。临床首先要考虑的电解质、酸碱代谢失调是()。

A.低钾、低氯血症,呼吸性酸中毒

B.低钾、低氯血症,代谢性酸中毒

C.低钾、低氯血症,呼吸性碱中毒

D.低钾、低氯血症,代谢性碱中毒

E.低钾、低氯血症,混合型酸碱失衡

题型:单项选择题

Letter A

Dear Rose,

I like your programmes very much. I’m now writing to ask you something about American social customs. My American friends want me to join them in their dinner party. I am very happy and have decided to go, but I’m a little worried about it, too. The social customs in my country are very different from here, so I’m afraid of making mistakes.

Should I bring a present, such as sweets or flowers Should I arrive on time or a little late At the dinner table, how can I know which fork or knife to use How can I let the family know that I’m thankful for their kindness

Wang Lin

Letter B

Dear Wang Lin,

It’s a good idea to bring a small present when you go to a dinner party. Flowers are always nice, or you may bring a bottle of wine if you know that your friends drink it.

You should arrive on time or five to ten minutes late. Don’t get there early. If you’re going to be more than fifteen minutes late, you should call and tell them.

Try to be free at the dinner table. If you don’t know about choosing the right fork or knife, just watch the other people, and follow them. If you still have no idea of what to do, ask the person next to you.

If you like the food, say so. Of course, you’ll thank them for the meal and for their kindness. It’s also a good idea to send a thank you card the day after.

Rose

Rose is possibly().

A.a good housewife

B.a TV hostess

C.a member of the dinner party

D.a friend of Wang Lin’s

题型:单项选择题

根据《消防法》之规定,若单位有损坏、挪用或者擅自拆除、停用消防设施、器材的,以下哪种处罚符合规定。()

A、责令改正,处十万元罚款

B、停产停业,处十万元罚款

C、责令限期改正

D、责令改正,处三万元罚款

题型:单项选择题

目前国家对劳动防护用品管理颁布了()重要文件。

A.《特种劳动防护用品生产许可证实施细则》

B.《劳动防护用品管理规定》

C.《关于特种劳动防护用品安全生产许可证换证工作的通知》

D.《特种劳动防护用品生产许可证实施细则》、《劳动防护用品管理规定》和《关于特种劳动防护用品安全生产许可证换证工作的通知》

题型:单项选择题

花翳白陷的主要特征是,不包括()

A.黑睛四周高起

B.中间低陷

C.形如花瓣

D.善变速长

E.反复发作

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