If you see sb.you know after short time, just say 'Hello'.

I would like you to ____ with the luggage. (lend sb a hand)

Delegate" means to “ Give a job to sb so that they do it for you”,In other words,

中国大学MOOC: a document that you send to sb using email 答

国际进阶U2单词练习根据英文意思，填写重点单词或词组（due to; subsidise; fringe; compete; prospect）1.the chances of being successful2.caused by sb/sth; because of sb/sth3.the outer edge of an area or a group4. to give money to sb or an organization to help pay for sth5. to try to be more successful or better than sb else who's trying to do the same as you

填入适当的介词 deprive sb ________ sth rob sb _______ sth remind sb _______ sth notify sb _______ sth accuse sb ________ sth

wave to/at sb wave goodbye to sb

呼吸性碱中毒中（） A: AB＞SB B: AB＜SB C: A D: SB均正常 E: A F: SB均低于正常 G: A H: SB均高于正常

分析下面的Java程序段,编译运行后的输出结果是( )。public class Test {public void changeString(StringBuffer sb) {sb.append("stringbuffer2");}public static void main(String[] args) {Test a = new Test();StringBuffer sb = new StringBuffer("stringbuffer1");a.changeString(sb);System.out.println("sb = " + sb);}} A: sb = stringbuffer2stringbuffer1 B: sb = stringbuffer1 C: sb = stringbuffer2 D: sb = stringbuffer1stringbuffer2

急性呼吸性酸中毒时,AB和SB变化特征为: A: AB(实际碳酸氢盐)升高 B: SB(标准碳酸氢盐)升高 C: AB<SB D: AB>SB E: AB↓、SB↓、AB=SB