更多"The speed at which an animal lives "的相关试题:
[单项选择]The speed with which an electronic computer works depends on its（）
A. electronic circuits
B. programmer
C. vacuum tubes, or transistors
D. instructions
[单选题]_______ is the speed which allows the airplane to remain aloft while using the least amount of power necessary to sustain level flight.
A.Maximum endurance speed
B.Minimum endurance speed
C.maximum range speed
D.minimum range speed
[单选题]_______ is the never-exceed speed which is marked by a red line on the color-coded arc of the airspeed indicator.
A.Vlc
B.Vfc
C.Vnc
D.Va
[单选题]The ground speed of an aircraft is _______ by a headwind which would reduce it, or by a tailwind which would increase the ground speed.
A.affected
B.decided
C.determined
D.influenced
[单项选择]A. He does not like the block he lives.
B. He will start running a company next month.
C. He has to buy a car for convenience.
D. He will work for a company far from his present house.
[单项选择]
(51) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(52) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(53) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
(54) is the popular LAN developed under the direction of the IEEE802.5.
(55) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
（51）是（）
A. The MAC address
B. The IP address
C. The subnet address
D. The virtual address
[单选题]The ground speed of an aircraft is affected by a _______ which would reduce it, or by a _______ which would increase it.
A.low wind, high wind
B.high wind, low wind
C.north wind, south wind
D.headwind, tailwind
[单项选择]According to the passage, which of the following behaviors is frequently characteristic of funnel clouds
A. Descending from different cloud bases.
B. Occurring in isolated areas.
C. Lasting a long time.
D. Occurring in groups.
[单项选择]Praise is like warm sunlight，which will not only bring joy to those who are praised but also add more pleasure to those who praise（）
A. 表扬像温暖的阳光一样，不仅给被表扬者带来欢乐，也会给被表扬者带来更多的幸福。
B. 赞扬像温暖的阳光，不仅会给被表扬者带来高兴，也会给表扬者带来欢乐。
C. 赞扬犹如温暖的阳光，它不仅会给被赞扬者带来欢乐，也会给赞扬者带来更多的愉快。
D. 唱歌像阳光，阳光不但给唱歌的人带来快乐，而且给听者带来快乐。
[单项选择]According to the passage, which book is the only book you'll ever need
A. The Bible.
B. A single volume.
C. New Age tome.
D. An electronic book.
[单项选择]Which of the following is NOT written by William Butler Yeats
A. Sailing to Byzantium.
B. The Lake Isle of Innisfree.
C. Leda and the Swan.
D. The Waste Land.
[单项选择]
{{B}}TEXT C{{/B}}
Insects which eat grain
and other stored food can be partially controlled by cooling the grain. But the
damage insects cause can be further limited by making them even more susceptible
to cold, says a Canadian researcher.
Insect pests die if they
freeze, but many have the ability to become "supercool", remaining alive even
when the temperature drops to - 10℃. However, Paul Fields of the Agriculture
Canada Research Station in Winnipeg has discovered that the ability of these
insects to supercool can be seriously affected by "ice-nucleating-active
bacteria". When the bacteria are present, the insects freeze and die at a higher
temperature than normal.
Ice-nucleating-active bacteria are
found naturally on most plant leaves. They are also grown commercially for use
in cloud seeding and in making artificial snow.
Fields added
these bacteria to wheat which was stored at a temperature of - 10℃ and contai
A. the bacteria are only effective against three species of beetles
B. Fields’ technique is less effective in winter
C. Fields’ technique may kill nearly all the beetles at -10℃
D. Insects may develop resistance against the bacteria
