一所学校要求学生7:30到校,11:20放学,学生上午在校时间是______.
11:20-7:30=3小时50分.
故学生上午在校时间是3小时50分.
故答案为:3小时50分.
肌筋膜深筋膜和()。
The receiving activities conduct analyses of the requirements with the requirements provider to ensure that a compatible, shared understanding is reached on the meaning of the requirements. The result ofthis analysis and dialog is an()set of requirements.
A.agreed-to
B.agree-to
C.agree-to-do
D.agree-with