单项选择题

A．Cats can change their position while falling.
B．The force of impact with the ground over four legs is spread.
C．Cats can land on their feet after falling.
D．Their muscles can absorb more of the force of impact.
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单项选择题
The desire to make education subservient to the desires of industry is attractive because _______.
A．the goals are easier to define and measure
B．for those who take a wider view of education
C．economic competition is so intense these days
D．youth are lacking the skills to compete in the modem economy
单项选择题
A．He has more than one child.B．His wife is a graduate student.C．He is a full - time student.D．He works at the university housing office.
A．He has more than one child.
B．His wife is a graduate student.
C．He is a full - time student.
D．He works at the university housing office.
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