【简答题】NASA’s twin Mars rovers, Spirit and Opportunity, have been exploring the Red Planet since 2004. But a little more than a year ago, NASA lost contact with Spirit. The space agency has tried several way...
【单选题】Scientists attempting to replicate certain controversial results reported by a group of experienced researchers failed to get the same results as those reported. The conclusion drawn from this by the ...
A.
the original experiments had not been described in sufficient detail to make an exact replication possible.
B.
the fact that the originally reported results aroused controversy made it highly likely that they were in error.
C.
the theoretical principles called into question by the originally reported results were themselves based on weak evidence.
D.
the replication experiments were not so likely as the original experiments to be marred by faulty measurements.
E.
the researchers who originally reported the controversial results had themselves observed those results only once.
【简答题】阅读理解。 Although there are many ways in which people communicate through speech, public speaking has probably received more study and attracted more attention than any other. Politicians winning an elec...