单项选择题

A．To hear a translation of her talk.
B．To hear signals produced by electric fish.
C．To hear sounds used to train electric fish.
D．To hear a recording about electric fish.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Martian spacesuits will have larger air tanks. B．Martian spacesuits will be equipped with special weights. C．Martian spacesuits will be more flexible. D．Martian spacesuits will be less durable.
A．Martian spacesuits will have larger air tanks.
B．Martian spacesuits will be equipped with special weights.
C．Martian spacesuits will be more flexible.
D．Martian spacesuits will be less durable.
单项选择题
A．Help the man plan a student rally. B．Use the student parking lot. C．Make a donation to support the group. D．Sign a petition.
A．Help the man plan a student rally.
B．Use the student parking lot.
C．Make a donation to support the group.
D．Sign a petition.
相关试题