A:X染色体上
B:性染色体上
C:Y染色体上
D:常染色体上
将左右两部分搭配,使其成为通顺的句子。
①Is she in the study?____ A. It's on the desk.
②Is this your bedroom?____ B. No, they aren't.
③Where's my pen?____ C. No, it isn't.
④Are they on the chair?____ D. Yes, she is.
⑤Where are my books?____ E. They are on the bed.
下列对课文《心声》内容理解有误的一项是( )