The rescuer can best provide an airtight seal during mouth-to-mouth resuscitation by pinching the victim’s nostrils and（）.

A . carotid artery in the neck B . femoral artery in the groin C . brachial artery in the arm D . radial artery in the wrist

A . Cupping a hand around the patient's mouth B . Keeping the head elevated C . Applying his mouth tightly over the victim's mouth D . Holding the jaw down firmly

A . civilize B . cultivate C . evolve D . trai

A．Dr. Randy Nelson and His New Findings. B．Animals Resistance to Cancer. C．Winter and Animals' Immune System. D．A Light in the Cancer Darkness.

A．Some New Research Findings on the Chimpanzee Mind B．Chimpanzee Can Be Much More Intelligent and Creative than We Had Expected C．Chimpanzee and Sign Language D．Chimpanzees Are Proved to Be Closer to Human Beings in Language Learning 此题为多项选择题。

A．Surroundings B．Intelligence C．Dependence on Environment D．Effect of Education

A．An efficient way. B．Nothing new. C．Dialectic. D．Sarcastic.

A．Barriers Made by People B．Functions of Communication C．Restrictions on Transportation D．Progress o Human Society

A:The benefits of a less stressful day B:How to solve teenagers’ sleep problem C:The benefits of later school start time D:The reasons why teenagers sleep differently

A．A.account for B．B.describe in detail C．C.give an overall view of D．D.give some good examples of

A．Hand Preference of Chimpanzees. B．Human Handedness and Animal Lateralization. C．The Myth behind Human Handedness. D．An Unique Animal Behavior.

A．The Eye as the Window to the Soul B．Cultural Differences in Reading Emotions C．Effective Methods to Develop Social Skills D．How to Increase Cross-cultural Understanding

A．Two Basic Rights. B．Government Is Not Enough to Encourage Economy. C．Individual Rights Are Crucial. D．Comments by Mancur Olson.

A．Human Identity—an Elusive Illusion B．How to Identify a Particular Person C．What Makes Human Beings Individuals？ D．The History of Human Identity

A．The stability of marriage and the divorce rate may reflect the economic situation of the country. B．Even when economically independent, most women have to struggle for real equality in marriage. C．In order to secure their marriage women should work outside the home and remain independent. D．The impact of the growing female workforce on marriage varies from case to case.

A．An assertion is made and a specific supporting example is given. B．A conventional model is dismissed and an alternative introduced. C．The results of recent research are introduced and summarized. D．Two oppos to points of view are presented and evaluated. 此题为多项选择题。

A．Daytime Highs and Nighttime Lows. B．The Average DTR Was Different. C．Weekend Weather Really Is Different. D．There's Rain in The Forecast.

A．The Nature of Science and Scientists B．Biology and the Scientific Age C．Hypotheses and Theories D．On Distinguishing Fact from Fiction

A．tolerance B．appreciation C．dismissal D．sarcasm 此题为多项选择题。

A．Honest． B．Intelligent． C．Considerat E． D．Consultativ E．

A．Caring and determined B．Honest and responsible C．Ambitious and sensitive D．Innocent and single-minded