开通、变更或取消短信大礼包套餐均在办理（）生效。
A.当月；
B.次月；
参考答案：B
I would like to join the school volunteer project, and I often imagine _______.
A．what I should do it
B．what should I do
C．what I should do
D．how should I do
不属于小孢子菌属的是（）
A.铁锈色小孢子菌
B.石膏样小孢子菌
C.阿萨希毛孢子菌
D.猪小孢子菌
E.犬小孢子菌
