Read, then choose the best answer by circling the corresponding letter A, B, C or D. Radar is an electronic device that can "see" great distances (1)...... fog, rain, snow, cloud, and darkness. It can find and (2) locate missiles, aircraft, ships, cities, rainstorms, and mountains. Radar uses radio waves, (3)........... light waves, which the human eye uses in seeing. This makes it (4)........ for radar to locate many kinds of objects at (5)....... greater distances than the eye can see. Radar became an important military device during World War 11. Today, networks of radar lookout stations guard the United States and Canada 24 hours a day against (6)....... missiles and airplanes. Patrol planes and ships (7)........ the oceans with radar for hostile Ships and aircraft. Airports use radar to (8)........ planes safety to earth in fog or storms. Ships use it to steer clear of other (9)......... or icebergs. Radar helps Weathermen warn of (l 0) hurricanes or tornadoes. Trả lời câu hỏi dưới đây:(10).........
Câu hỏi
Nhận biếtRead, then choose the best answer by circling the corresponding letter A, B, C or D.
Radar is an electronic device that can "see" great distances (1)...... fog, rain, snow, cloud, and darkness. It can find and (2) locate missiles, aircraft, ships, cities, rainstorms, and mountains. Radar uses radio waves, (3)........... light waves, which the human eye uses in seeing. This makes it (4)........ for radar to locate many kinds of objects at (5)....... greater distances than the eye can see. Radar became an important military device during World War 11. Today, networks of radar lookout stations guard the United States and Canada 24 hours a day against (6)....... missiles and airplanes. Patrol planes and ships (7)........ the oceans with radar for hostile Ships and aircraft. Airports use radar to (8)........ planes safety to earth in fog or storms. Ships use it to steer clear of other (9)......... or icebergs. Radar helps Weathermen warn of (l 0) hurricanes or tornadoes.
Trả lời câu hỏi dưới đây:
(10).........
Đáp án đúng: D
Lời giải của Luyện Tập 365
Câu hỏi liên quan
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The word “hyperactive” in line 24 is closest in meaning to ________ .
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Trả lời cho câu hỏi dưới đây:
“Why is Jane upset?” “She's disappointed because her son's low test scores prevented ______ to the university.”
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“Why is Jane upset?”
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Trả lời câu hỏi dưới đây:
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I/ write/ thank/ you/ spend/ summer/ us.
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The word “these” in line 26 refers to _________ .
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“I understand you don't like opera.”
“________ , I go at least once a raonth.” -
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According to the passage the difficulty in diagnosing allergies to food is due to _____ .