更多"W: What am I suffering from7
M: I"的相关试题:
[单项选择]
W: What am I suffering from7
M: I’ll answer your question soon. First let me feel your pulse.
What is the possible relationship between the two speakers7（ ）.
A. Family members.
B. Student and teacher.
C. Patient and teacher.
D. Film star and director.
[单项选择]What makes teenagers moody and impulsive The answer used to be raging hormones plus a dearth of(短缺) life experiences. But three years ago this simple equation was blown apart by evidence from brain scans of strange goings-on behind the teenage forehead.
Till then, scientists had thought the brain’s internal structure was fixed by the end of childhood. The new scans showed the brain’s frontal cortex(皮层) thickening just before puberty(青春期), then slowly shrinking back to normal during the teenage years. Suddenly, the erratic huffiness(发怒) seemed to make sense: the teenage brain was a work in progress, a house in the process of being rewired.
Now comes more evidence of neural turmoil. According to psychologists in California, the speed with which youngsters can read the emotional expressions on people’s faces dips suddenly at around the age of 11 or 12 and takes years to get back on track.
The latest study, like the brain scan research before it, is a welcome and necessary p
A. their innocence and lack of life experience
B. their raging hormones and lack of life experience
C. their radical attitudes towards life
D. the generation gap between teenagers and their parents
[单项选择]What’ll Mary do tonight（）
A. She’ll go to the beach.
B. She’ll go to France.
C. She’ll drive to see her brother.
D. She’ll drive her mother to the airport.
[单项选择]
Radiocarbon Dating
Nowadays scientists can answer many questions about the past through a technique called radiocarbon (放射), or carbon-14, dating. One key to understanding how and why something happened is to discover when it happened.
Radiocarbon dating was developed in the late 1940s by physicist Willard F. Libby at the University of Chicago. An atom of ordinary carbon, called carbon-12, has six protons (质子) and six neutrons (中子) in its nucleus(原子核). Carbon-14,or C-14,is a radioactive,unstable form of carbon that has two extra neutrons. It returns to a more stable form of carbon through a process called decay(衰减). This process involves the loss of the extra neutrons and energy from the nucleus.
In Libby’s radiocarbon dating technique, the weak radioactive emissions (放射)from this decay process are counted by instruments such as a radiation detector and counter. The decay rate is used to determine the proportion of C-14 atoms in the ’sam
A. Right
B. Wrong
C. Not mentioned
[单项选择]What will happen at 10 am
A. Normal operations will resume.
B. Equipment will be replaced.
C. Machines will be turned off.
D. The worker’s lounge will be shut.
[单项选择]What do you guess they’ll do
A. Go to the class at once.
B. Make it in the dorm.
C. Skip over the work.
D. Find out the assignment.
[填空题]Questions
·Read the following passage and answer questions.
1. If sustainable competitive advantage depends on work-force skills, American firms have a problem. Human-resource management is not traditionally seen as a central to the competitive survival of the firm of the United States. Skill acquisition is considered an individual responsibility. Labor is simply another factor of production to rent at the lowest possible cost — as much as one buys row materials or equipment.
2. The lack of the importance attached to human-resource management can be seen in the cooperation hierarchy. In an American firm the chief financial officer is almost always second in command. The post of head of human-resource management is usually a specialized job, off at edge of corporate hierarchy. The executive who holds it is never consulted on major strategic decisions and has no chance to move up to Chief Executive Officer. By way of contrast, in Japan the
