What are two key characteristics of hunter-gatherers mentioned in the lecture？ Click on 2
A. They were taller than farmers.
B. They ate less well than farmers.
C. They lived longer than farmers.
D. They were less physically fit than farmers.
查看答案
A．attitudeB．careersC．friendsD．cloths
A. attitude
B. careers
C. friends
D. cloths
McDonald's took its name from
A. Ray Kroe
B. two brothers
C. a kind of food
A．zincB．handbagC．winterD．wound
A. zinc
B. handbag
C. winter
D. wound
下列选项中，哪些构成无因管理之债？（)A．甲发现乙一人忙脱粒，主动帮忙。因谷子飞进甲的眼睛而受伤，下列选项中，哪些构成无因管理之债？()
A. 甲发现乙一人忙脱粒，主动帮忙。因谷子飞进甲的眼睛而受伤，花去医药费1 000元，甲请求乙支付医药费
B. 甲见乙拉车上坡非常吃力，主动在车后帮乙推车。乙受力肩上的皮带松动，致车后滑伤甲，花去医药费500元，甲请求乙支付医药费
C. 某天傍晚，大雾弥漫，某村青年甲、乙在张大妈家的柴火旁谈恋爱，张大妈出来抱柴火，青年甲、乙急忙跑出去，张大妈以为遇上了鬼，惊吓成病，花去医药费1 000元。张大妈请求甲、乙支付1 000元
D. 甲将丢失的羊牵回家中，乙向甲索要，甲要求乙支付草料费50元
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