plumber

What does the man mean Whom is the man speaking to A: Electrician. B: B．Plumber. C: Guard. D: D．Mechanic.

If your sink is clogged, then you need to call a plumber to __________ it.

The bricklayer is working on the house today. A: carpenter B: plumber C: electrician D: mason

Which of the following is not a white-collar worker?( ) A: plumber B: accountant C: clerk D: banker

Which of the following is not a blue-collar worker? A: plumber B: electrician C: attorney D: structural worker

Hook<br/>is to shepherd as torch is to () A: goat B: herder C: plumber D: gardener E: welder

Which<br/>of the following cannot be used to express hopes for the long-term<br/>future? ______ A: I<br/>could do something I’ve always wanted. B: I<br/>hope to afford you more clarity in the future. C: I’d<br/>like to have a cup of tea. D: I<br/>want to be a plumber when I grow up.

Whichtwowordsareclosestinmeaning?<br/><b>cycle</b><b>，</b><b>hawk</b><b>，</b><b>convey</b><b>，</b><b>extort</b><b>，</b><b>peddle</b><b>，</b><b>summon</b>

设A{a,b}，则P(A)×A = (   )。 A: A B: P（A） C: {<Φ,a>,<Φ,b>,<{a},a>,<{a},b>,<{b},a>,<{b},b>,<A,a>,<A,b>} D: {<a,,Φ,>,<b,,Φ,>,<a,{a}>,<b,{a}>,<a,{b}>,<b,{b}>,<a,A>,<b,A>}