首页
登录
职称英语
[originaltext] Bows and arrows are one of the man’s oldest weapons. They gav
[originaltext] Bows and arrows are one of the man’s oldest weapons. They gav
游客
2023-07-16
70
管理
问题
Bows and arrows are one of the man’s oldest weapons. They gave early man an effective weapon to kill his enemies. The ordinary bow or short bow was used by nearly all early people. These bows had limited power or short range. However, man overcame these faults by learning to track his target at close range. The long bow was most likely discovered when someone found out that a five-foot piece wood made a better bow than a three-foot piece. Hundreds of thousands of these bows were made and used for three hundred years. However, not one is known to survive today. We believe that force of one hundred pounds was needed to pull the string all the way back on the long bow. For a long time, the bow was just a bent stick and a string. In fact, more changes have taken place in the bow in the past 25 years than in the last 7 centuries. Today’s bow is forceful. It is as exact as a gun. In addition, it requires little strength to draw the string. Modem bows also have precise aiming devices. In indoor contests, perfect scores from 40 yards are common. The invention of the bow itself ranks with the discovery of fire and the wheel. It was a great step forward for man.
选项
A、It went out of use 300 years ago.
B、It was invented after the short bow.
C、It was discovered before fire and the wheel.
D、It’s still in use today.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2842563.html
相关试题推荐
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
[originaltext]OneofraymaingoalsinthissurveycourseofAmericanpaint
[originaltext]Thelawyersrepresentingtwoeleven-year-oldboysaccusedofk
[originaltext]M:Here’syourroom,you’llstayhereoverthreenights,madam?W
[originaltext]M:Here’syourroom,you’llstayhereoverthreenights,madam?W
[originaltext]M:Here’syourroom,you’llstayhereoverthreenights,madam?W
[originaltext]M:Ican’tbelieveKenmissedsuchanimportantmeetingeventho
[originaltext]M:Ican’tbelieveKenmissedsuchanimportantmeetingeventho
[originaltext]M:Ican’tbelieveKenmissedsuchanimportantmeetingeventho
随机试题
Whatisthewomandoing?[br][originaltext]M:Don,areyoueatingmytulips?W
WillAIRobotsTurnHumansintoPets?A)Inaroomatth
全云天时,下列哪个天空部位的亮度最低?( )A.在太阳位置附近处 B.在天空
如图所示,A端弯矩为()。 A.2M,上侧受拉 B.2M,下侧受拉 C.
用局麻药阻滞周围神经末梢或神经干(节丛)的冲动传导,产生一个局限性麻醉区,称局部
重要的审批文件中的“两书”是指《住宅质量保证书》和( )。A.《建设工程竣工
治疗油风肝肾不足证,应首选的方剂是( )。A.桃红四物汤 B.逍遥散合四物汤
对平面控制测量成果进行检查验收时,下列情况中,可认定成果存在粗差的有( )。
某工地工人在施工过程中不慎被钢筋刺破胸壁。该损伤的类型为 A.挫裂伤 B.挤
立堵截流时,最大粒径材料数量,常按困难区段抛投总量的( )考虑。A.1/2
最新回复
(
0
)