守门员盯住向自己飞来的足球，并将其抱住，这一过程中，晶状体曲度的变化是（ ）
A．由大变小
B．由长变短
C．由小变大
D．由短变长
答案：C
不适用人体MR成像装置的磁场强度为()
A．0.2T
B．0.5T
C．1.0T
D．2.0T
E．4.7T
She _____ an old friend of hers yesterday while she was shopping at the department store. [ ]
A. turned down
B. dealt with
C. took after
D. came across
