27 Mrs.White showed her students some old maps from the library．
A to borrow
B to be borrowed
C borrowed
D borrowing

What relation is the woman to Mr. Cooper? A His wifeB H...

单项选择题What relation is the woman to Mr. Cooper?
A His wife
B His boss．
C His secretary．

We learn from the text that a person with heart disease...

单项选择题We learn from the text that a person with heart disease has a better chance of getting well if
A．he has a pet companion
B．he has less stress of work
C．he often does mental arithmetic
D．he is taken care of by his family

According to Allen, why did the people do better with p...

单项选择题According to Allen, why did the people do better with pets around when l~cing stressful tasks?
A．They have lower blood pressure.
B．They become more patient.
C．They are less nervous.
D．They are in higher spirits.