①__________The balloon suddenly burst. ②
题型：翻译题
问题：
①__________The balloon suddenly burst.
② _________He burst into the room without knocking.
③__________She burst into laughter when she heard she was admitted into Beijing University. =
She burst out laughing when she heard she was admitted into Beijing University.
④_______She burst into tears when she heard the news that her boyfriend was missing in the
earthquake.= She burst out crying when she heard the news that her boyfriend was missing in the
earthquake.
sin100πt （V）的 正弦交流电源，图中电流表内阻不计．副线圈接入“110V，60W”灯泡一只，且灯光正常发光．下列说法正确的是（ ）
/22 A
