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【多选题】
金银花的性状特征有A.
细长鼓槌状、棒状，上粗下细
B.
表面密被短柔
C.
开放者，花冠筒状，先端二唇形
D.
雄蕊5个，附于筒壁
E.
气清香，味淡、微苦
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反馈参考答案：
举一反三
【单选题】When I saw her, she ____ the room.
A.
is cleaning
B.
was cleaning
C.
cleaned
D.
cleans
【单选题】下列关于雪卡毒性鱼的叙述正确的是
A.
雪卡毒素在人体不存在富集效应
B.
雪卡毒素与海豚毒素强度相当
C.
加热或冷冻不能破坏雪卡毒素毒性
D.
对雪卡鱼毒素已有行之有效的办法预防
【单选题】When I saw her, she ______ at the computer.
A.
is working
B.
worked
C.
was working
D.
has worked
【单选题】When I saw her, she ______ at the computer.
A.
worked
B.
was working
C.
has worked
D.
was worked
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