Some warm-blooded animals ______ hibernate.

A． need not

B． does not need

C． not need

D． do not need

[单选题]All live animals （including cold blooded animals） rates are（ ）of Normal GCR

[单选题]All live animals （including cold blooded animals） rates are（ ）of Normal GCR

[单选题]Some animals have colored and spotted coats so that they may______.A． appear frightening to the enemiesB． look like leaves or branchesC． keep motionless when an enemy is comingD． mix with the surroundings for safety

[单选题]As it approaches，a typical warm front will bring（）.A . rising temperatures and falling barometric pressureB . falling temperature and pressureC . falling temperatures and rising pressureD . rising barometric pressure and temperature

[主观题]words that is nice and warm. Still, your happiness makes 81. ____________

[单选题]Passage FiveA． warm-hearted nurse on her first day's work came to a patient who had come to London for a visit to the famous doctor. She asked the patient whether there was anything that she could do for him. But he only waved his hand, shook his he

[单选题]34．It is usually warm in my hometown in March，but it _________be rather cold some-times．A．mustB．canC．shouldD．would

[名词解释] 实验动物（Laboratory Animals）

[单选题]People and animals are different ______their reactions to drugs and in the way ______their bodies work.A． in…whichB． in…thatC． by…whichD． from…that

[单选题]［A］ New plants and animals then move into the area and begin to grow.［B］ Just 2 percent of the sunlight goes through the many layers of leaves and branches above, so understory plant species have developed special traits to cope with low light levels