使用绝缘手套时，应将其掖入外衣袖口内。
参考答案：错
制首乌的黑豆用量是( )
A．5kg/100kg
B．10kg/100kg
C．15kg/100kg
D．20kg/100kg
E．25kg/100kg
Some of the musical pieces for______Isadora Duncan choreographed dances were waltzes and mazurkas by Chopin.
A．whom
B．that
C．which
D．what
