淘米水洗菜，再用清水清洗，不仅节约了水，还有效地清除了蔬菜上的（）。A、虫子 B、烂叶

在十九世纪末二十世纪初欧洲大陆上的主要矛盾不包括

A．英德矛盾

B．德奥矛盾

C．法德矛盾

D．俄奥矛盾

How did the Olympic Games start In ancient Greece athletic festivals were very important and had p ________ (1). Originally the Festival was held in honour of .Zeus, the supreme god in Greek Mythology. Eventually the Olympian athletic festival had lost its ________ (2) and became an international event. No one knows exactly ________ (3) the Olympic Games go, but some scholars recorded date from 776 B.C.According to some scholars, at first the only Olympic event was ________ (4), called a stadium and that was the only event until 724 B.C. After that, other ________ (5) were added and sixteen years later in ________ (6) the pentathlon was added and wrestling became part of the games. This pentathlon was a five-event match which ________ (7) running, wrestling, leaping, throwing the discus, and hurling the javelin.The games were held ________ (8) and after an uninterrupted history of 1170 years, the games ________ (9) in A.D. 394, the Christian era, because of their pagan origin.It was over ________ (10) before there was another such international athletics gathering. In 1896, the first of the modern ________ (11) opened in Athens, Greece.Nowadays, the Games are held in different countries ________ (12). The host country provides vast facilities such as stadiums and ________ (13).Many more sports are represented, including the very celebrated event: ________ (14).The Olympics start with the arrival in the stadium of a torch, ________ (15) on Mount Olympus by the sun’s rays. The torch is carried by ________ (16) to the stadium. The Olympic flame symbolizes the ________ (17) of the ancient Greek athletic ideals, and it burns throughout the Games until ________ (18). The well-known Olympic flag, however, is ________ (19): the five interlocking rings symbolize the uniting of all five continents ________ (20).

如图所示，用与水平方向成θ=37°角的斜向下的推力F推一个质量m=10kg的木箱，能使木箱在水平面上匀速直线运动．已知木箱与水平面间的动摩擦因数μ=0.50，重力加速度g取10m/s²，cos37°=0.6，cos37°=0.8．

（1）求推力F的大小；

（2）若作用在木箱上的力是一个水平推力，其大小等于F的水平分力．请分析说明，在这种情况下木箱是否还能在水平面上做匀速直线运动．

有关著作权的说法，错误的是( )。

A．在我国《著作权法》中，著作权同版权系同义语
B．著作权包括著作人身权和著作财产权
C．保护作品完整权不属于著作人身权
D．著作财产权包括“使用权”和“获得报酬权”两项权能

下列选项中，不属于企业取得搬迁补偿收入的内容是（）。

A.资产搬迁过程中遭到毁损取得保险赔款

B.因搬迁、安置而给予的补偿

C.对被征用资产价值的补偿

D.对破产形成的损失