远视凹镜片的尖边弧度与镜片前表面弧度一致。
参考答案:错
I’ll never forget the days___ I spent in the country with the farmers, ____, of course, has a great effect on my life.
A.that; which
B.when; which
C.that; who
D.when ; who
后索内上行的纤维束是: ()
A.皮质脊髓束
B.脊髓丘脑束
C.薄束、楔束
D.丘脑顶叶束