下列各组中没有错别字的一项是 [ ]
A.倩影 风致风姿 没精打采
B.落莫 萧索细腻 缓慢悠闲
C.了截 攀缘葱茏 急不瑕择
D.黝黑 尘诟盘旋 受之无愧
答案:A
Without good instructions of the teacher, you will be likely to___________ a lot of bad habits while you are practising the piano.
A.pull up
B.take up
C.pick up
D.bring up
井下空气中常见的有害气体有()。
A.甲烷
B.氦气
C.氢气
D.氧气