【单选题】下列有关人体内环境稳态的叙述,正确的是()。
A.
内环境仅由血浆、组织液、淋巴这三种细胞外液构成
B.
内环境成分中含有CO 2 、尿素、神经递质、血红蛋白等物质
C.
内环境中的血浆、淋巴、组织液等的成分稳定时机体就达到稳态
D.
细胞外液的渗透压主要来源于Na + 和Cl -
【单选题】When is the Labor day of the U.S.?
A.
The first Monday in September
B.
The second Monday in September
C.
The first Monday in May
【单选题】对区域开发授权模式描述正确的是( )
A.
对特许人来说,这种模式开拓市场的前期风险较小
B.
特许人对加盟店的控制力较弱,容易造成对品牌的威胁
C.
星巴克、必胜客进军中国市场初期就采取了此模式
【单选题】The very influential Mei School, for instance, was founded by ______.
【单选题】在平地、坡上或道路不良的条件下,一律以( )起步
【简答题】选择下列句子完成下面对话。(共5小题,每小题1分) A: Good morning. What can I do for you? B: I want a mobile phone, but I don’t know which one to buy. A: ________ 小题1: Which brand do you like best, an HTC, a Nokia or an iPho...
【单选题】Labor Day is the Monday of September.
【单选题】如果直线a平行于平面α,直线b∥a,点A∈α,A∈b,则b与α的位置关系是( )
【简答题】Your successor in a job is the person
who comes ________ you. (1.0分)A. after B. before