美容院用浓度为95%的酒精消毒工具与美容师的双手。()
参考答案:错
In the rice-growing world, ______ Chinese scientist, Yuan Longping, is ______ leading figure.
A.a; the
B.the; a
C.a; a
D.the; the
一个汉字的国标码需用2字节存储,其每个字节的最高二进制位的值分别为______。
A.0 0 B.1 0 C.0 1 D.1 1