Science Life
Just how touchy are you?
FIND out how sensitive (敏感的) your sense of touch is.
Cut a piece of cardboard to make two “teeth” (see below). The points of the teeth should be 2cm apart (分开的).
- 对本期电子报订户、有效期内的VIP教师会员和本学期高二尊享卡用户,我们开放所有内容:
- 如果您拥有以上权限,请点这里登录;
- 订阅电子报,请点这里;
- 激活VIP教师卡,请点这里;
- 激活21英语尊享卡,请点这里。