—My father has decided to _________ smoking. —That’s good news for us. A. give up B. hand up C. put up D. look up
__________ it rain, the crops_____________. A. Shall,would be saved B. Should, would be saved C. Would, should be safe D. Were, might be safe
在农业生产上，用生长素的类似物萘乙酸诱导无子果实的效果比用天然的生长素要明显，其原因是( ) A．萘乙酸成本低，用量大，而用吲哚乙酸成本高
读右图．完成4—5题。 4．该图揭示森林具有的作用是 A．净化空气 B．防风固沙 C．保护农田 D．保持水土 5．若图中森林被破坏，下列叙述较
已知圆锥的底面半径是1，高是，则该圆锥的侧面展开图的圆心角是 度．
制作泡菜时坛口必须密封，主要是为了（ ） A．隔绝空气，防止其它菌进入 B．利于乳酸菌在缺氧的环境下发酵 C．防
She’s having a lot of trouble with the new computer, but she doesn’t know whom to _______. A. turn to B. look for C. deal with D. talk about
（08安徽）小红同学在做“探究串联电路电压的规律”的实验时，连好了如图所示的电路，接通开关后发现L1正常发光，L2只能微弱发光，对产生这一现
