对于葡萄胎的诊断价值最大的是
A．子宫大于妊月
B．停经后 * * 流血
C．妊娠试验
D．B型超声
E．出现妊高征征象
参考答案：D
_____ by the latest electronic toys, the little boy stood in front of the windows, without moving.
A．To be arrested
B．Arrested
C．Having arrested
D．Arresting
—______ does Mike live? —He lives in the city of Beijing.
A．Where
B．How
C．Which
D．What
