在固体培养基上培养的菌丝体主要向()个方向生长。
A.1
B.2
C.3
D.4
参考答案:B
—Sorry my dog frightened your daughter.
—Forget it! _______.
A.She deserved it
B.Every dog has its day
C.Bad luck comes three
D.Animals will be animals
淮南师范学院大学生SYB、创业模拟实训等培训的费用是()。
A.全额免费
B.500元
C.1000元
D.根据证书等级交费