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:(4).............
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:
(4).............
Đáp án đúng: B
Lời giải của Luyện Tập 365
Câu hỏi liên quan
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The word “symptoms” in line 10 is closest in meaning to ________ .
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The author states that the reason that infants need to avoid certain foods related to allergies has to do with the infant's ________ .
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“How did you decide what kind of car to buy?”
“After ________ all the altematives, I chose the fastest car I could find." -
Đọc đoạn văn sau và chọn phương án đúng (ứng vói A, B, C hoặc D) cho mỗi chỗ trống từ 21 đến 30.
Honey is a sweet liquid made by trees. It (21) ______ of water and sugars. Bees may travel as (22) ______ as seventy-five thousand kilometres and visit over two million flowers to produce just half a kilo of honey. The colour and flavour of honey depend (23) ______ the type of flower visited. In (24) ______ , there are more than three hundred (25) ______ of honey. The lighter-coloured ones are generally milder in flavour than darker honey.
In ancient (26) ______ , honey was the main sweet food, as sugar was very (27) ______ . Honey was of great (28) ______ to the ancient Egyptians, who used it as payment.
Today, honey is produced and eaten in (29) ______ part of the world. Research suggests that it prevents tiredness and improves athletic performance. However, honey is not just food - it (30) ______ be taken for sure throats and is used in many skin and hair-care products.
Trả lời câu hỏi dưới đây:
____ (21)
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“Do you know where Bob is?”
“Strange __________ sound, he is in Cedar Rapids.” -
“John's remark was very strange.”
“Yes, I was completely ________ by what he said." -
The word “these” in line 26 refers to _________ .
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“Did Bob take the test?”
“Yes, and ________ he passed it easily.” -
Not mentioning the authors name was a serious _________ .
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Jane is a very ________ student.