单项选择题
A．anxious B．pessimistic C．doubtful D．ignorant
It was an allusion to what the scientist thought was an...
单项选择题It was an allusion to what the scientist thought was an inappropriate distribution of funds for stem cell research.（）
A．reference B．contradiction C．explanation D．rejection
The low interest rates on banks loans provided an impet...
单项选择题The low interest rates on banks loans provided an impetus for many to buy homes.（）
A．incentive B．obstacle C．reason D．delay
The child was so ingenuous that even when she knocked t...
单项选择题The child was so ingenuous that even when she knocked the television off its stand so that it was irreparably damaged, her parents thought her to be charming（）
A．intelligent B．ingenious C．adroit D．naive
