—Yes. He came to study here just last month.
A:that he is a new student
B:when did he come here
C:if she likes English best
D:whether he is a new student
显微镜与开普勒望远镜比较,不同的是显微镜 ( )
在“探究杠杆平衡条件”实验中,利用在杠杆两端挂钩码的方法做实验,实验装置如图所示.