肝豆状核变性（）。
A.维生素缺乏
B.自身免疫性疾病
C.病毒感染
D.铜代谢障碍
E.糖代谢障碍
参考答案：D
根据句意补全单词中所缺字母，使补全后的句子通顺、合理。
l.—What colour is Ann's skirt?
—It's r____d.
2.We often play g____mes after school.
3.Put your r____ler and your pen in the pencil-box.
4.My parents work f____ ve days a week.
5.There are a lot of cars and buses in the str____t.
6.Don't open the wind____ . It's cold outside.
如图是用厚刻尺测量木块的长度，其中正确的测量图是（ ）
A．
B．
C．
D．
