财务报表层次的重大错报风险很可能源于薄弱的控制环境。薄弱的控制环境带来的风险可能对财务报表产生广泛影响，难以限于某类交易、账户余额、列报，注册会计师应当采取()

A.具体应对措施

B.实施更多的控制测试

C.扩大控制测试的范围

D.总体应对措施

--- Will you stay for meal as more friends will come for a gathering?

--- Sorry, _______. My brother is coming to see me.

A．I mustn’t

B．I can’t

C．I needn’t

D．I won’t