Many manufacturers were accused of concentrating too heavily on cost -考呗网题库移动版

单选题 Many manufacturers were accused of concentrating too heavily on cost reduction, often at the__________ of the quality of their products.

A．expansion
B．exposure
C．expense
D．expectation

参考答案C

解析:

单选题 If we continue to ignore the issue of global warming, we will almost certainly suffer the __________ effects of climatic changes worldwide.

A．dubious
B．drastic
C．trivial
D．toxic

单选题 Mary wants to study medicine but she is not very clever. I don't think she is__________ it,

A．up to
B．for
C．within
D．towards

单选题 In order to make myself__________ in English, I am studying hard.

A．understand
B．understanding
C．to understand
D．understood