测量仪器精度愈高，被测物件的测量值就（）。
A.愈低；
B.愈精确；
C.不变；
D.愈多；
参考答案：B
Children under sixteen are not permitted to participate in such kind of activities ________ bad for their mental development.
A．as is
B．as are
C．that are
D．that they are
