晚期妊娠双顶径测量误差范围是
A．2～3mm
B．4～5mm
C．6～7mm
D．8～9mm
E．5～6mm
参考答案：A
—Is that _____ friend?
—Yes, _____. [ ]
A. your; it isn't
B. he; it's
C. our; it is
D. her; it isn't
段内转移指令执行结果要改变IP，CS的值。（）
