Some scientists believe that hibernation is started by ______.

A． over-eating

B． calcium deposits

C． a body chemical

D． a lack of water

[单选题]Somepeoplebelievethatsinceoilisscarce,the____ofthemotorindustryisuncertain.A．)terminalB)benefitC)fateD)estimate

[单选题]Some officials believe bird flu spread to Africa mainly due to ______.A． the trade of farm birdsB． the waste and liquids of infected birdsC． the fact that sortie people touched sick birds or any infected part of sick birdsD． the virus changed and sta

[单选题]The underlined word "hibernation" in paragraph 2 means ______.A． a sleep to avoid eatingB． a temperature in a cold weatherC． a sleep in the cold seasonD． an animal to practice sleep in winter

[单选题]_______[A] Other anthropologists believed that cultural innovations, such as inventions, had a single origin and passed from society to society. This theory was known as diffusionism.[B] In order to study particular cultures as completely as possible

[单选题]_______[A] Other anthropologists believed that cultural innovations, such as inventions, had a single origin and passed from society to society. This theory was known as diffusionism.[B] In order to study particular cultures as completely as possible

[单选题]You believe that the likelihood of bankruptcy is 30% for Rusty Roof Supply.

[单选题]Skeptical observers believe that ancestry testing fails toA．trace distant ancestors.B．rebuild reliable bloodlines.C．fully use genetic information.D．achieve the claimed accuracy.

[单选题]E．ricsson and his colleagues believe that[A] talent is a dominating factor for professional success.[B] biographical data provide the key to excellent performance.[C] the role of talent tends to be overlooked.[D] high achievers owe their success most

[单选题]E．ricsson and his colleagues believe thatA．talent is a dominating factor for professional success.B．biographical data provide the key to excellent performance.C．the role of talent tends to be overlooked.D．high achievers owe their success mostly to nu

[单选题]A．dvocates believe that students who are schooled at home and in the community ______.A．exhibit the American can-do spiritB．will be more likely to home-school their own childrenC．lack basic social skillsD．are more culturally sophisticated