It has been necessary to refer repeatedly to the effects of the two world wars in promoting all kinds of innovation. It should be (21) also that technological innovations have (22) the character of war itself by (23) of new mechanical and chemical devices. One weapon developed during World War Ⅱ (24) a special mention. The (25) of rocket propulsion was well known earlier, and Us possibilities as a (26) of achieving speeds sufficient to escape from the Earth’ s gravitational pull had been (27) by the Russian and the American scientists. The latter built experimental liquid-fuelled rockets in 1926. (28) , a group of German and Romanian pioneers was working (29) the same lines, and in the 1930s, it was tins team that developed a rocket (30) of delivering a warhead hundreds miles away. Reaching a height of over 100 miles, the V-2 rocket (31) the beginning of the Space Age, and members of its design team were (32) in both the Soviet and United States space programs after the war. Technology had a tremendous social (33) in the period 1900-45. The automobile and electric power, (34) , radically changed both the scale and the quality of 20th-century life, (35) a process of rapid urbanization and a virtual revolution (36) living through mass production of household goods and (37) . The rapid development of the airplane, the cinema, and radio made the world seem suddenly smaller and more (38) . The development of many products of the chemical industry further transformed the life of most people. In the years (39) 1945 the constructive and creative opportunities of modern technology could be (40) , although the process has not been without its problems.
A. by
B. in
C. through
D. on
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有花植物和传粉动物的______是自然界中最普遍的现象。
Interpersonal communication is your interaction with others. Talking to a friend on campus, chatting to a(n) (67) friend on campus, chatting on the phone with a classmate about a(n) (68) test, arguing the (69) of a movie with friends, discussing strategies for accomplishing tasks at work, (70) for a job, and. planning the future (71) a loved one are all forms of interpersonal communication. Effective interpersonal communication (72) our sensitivity to others and to the situation. One goal of effective interpersonal communication is to maintain relationships, and forming (73) messages that accurately convey our ideas and feelings (74) not offending the other person is key (75) our success. Effective interpersonal communication (76) us. People who can clearly express their ideas, beliefs, and opinions become influential and (77) control over what happens to them and to others that they (78) . When we accurately and precisely (79) our thoughts, others gain a better (80) for our position. Their understanding and appreciation make it more likely that they will respond in (81) that are consistent with our needs. Effective interpersonal communication helps us manage the (82) we create. Presenting ourselves in such a way that others will (83) and trust us is important in both public and private (84) —whether we’re communicating in a professional setting, (85) our interpersonal skills are vital to getting a job, holding a position, or rising in an organization, or in a private setting where we’re trying to (86) and maintain relationships.
A. sound
B. directory
C. diction
D. verbal
It has been necessary to refer repeatedly to the effects of the two world wars in promoting all kinds of innovation. It should be (21) also that technological innovations have (22) the character of war itself by (23) of new mechanical and chemical devices. One weapon developed during World War Ⅱ (24) a special mention. The (25) of rocket propulsion was well known earlier, and Us possibilities as a (26) of achieving speeds sufficient to escape from the Earth’ s gravitational pull had been (27) by the Russian and the American scientists. The latter built experimental liquid-fuelled rockets in 1926. (28) , a group of German and Romanian pioneers was working (29) the same lines, and in the 1930s, it was tins team that developed a rocket (30) of delivering a warhead hundreds miles away. Reaching a height of over 100 miles, the V-2 rocket (31) the beginning of the Space Age, and members of its design team were (32) in both the Soviet and United States space programs after the war. Technology had a tremendous social (33) in the period 1900-45. The automobile and electric power, (34) , radically changed both the scale and the quality of 20th-century life, (35) a process of rapid urbanization and a virtual revolution (36) living through mass production of household goods and (37) . The rapid development of the airplane, the cinema, and radio made the world seem suddenly smaller and more (38) . The development of many products of the chemical industry further transformed the life of most people. In the years (39) 1945 the constructive and creative opportunities of modern technology could be (40) , although the process has not been without its problems.
A. capable
B. able
C. possible
D. suitable
由枯枝落叶→真菌→花鼠组成的食物链属于捕食食物链。( )
A. 对
B. 错