A、禁止类技术
B、限制类技术
C、自由进出口技术
D、敏感物质和技术
—Whyhaveyouchangedsomuch?
—Youdon'tknowI______ahardlifeinthelasttenyears.
A、had
B、led
C、hadlived
D、haveled
通常我们说某一时期我国某种出口商品在国际市场上“滞销”是指该商品（）
A、供不应求
B、供过于求
C、供求平衡
D、供销稳定
—IsthereanythingelseIcandoforyou?
—______.
A、Nevermind
B、No,thanks
C、Nothingforyou
D、Yes,thanksalot
—What'stheweathergoingtobelikeattheweekend?
—______.
A、Idon'tthinkwehavehadmuchsnow
B、Thestormwon'tlasttoolong
C、It'sgoingtobeverycoldandcloudy
D、Wearetobecaughtinaheavyrain