属于遗传性疾病的是
A.多发性神经纤维瘤病
B.骨纤维异常增殖症
C.Marfan综合征
D.先天性高肩胛症
E.多发性骨软骨瘤
参考答案:A,C,E
–---What do you think of what she did?
----What she did still _________ us feel very sad.
A. make B. makes C. is making
蓄电池是一种直流电源。它可以实现化学能和()的转换。
A.电能
B.热能
C.光能
D.以上都不是