In 1917, The U.S.Rubber Company invented sneakers.

In a race, a rubber ring is placed on each participating pigeon’s leg to mark the time.

……wearing rubber boots…同义结构 A: in rubber boots B: have rubber boots on

Wood does not conduct electricity, ______． A: nor rubber does B: nor does rubber C: also doesn’t rubber D: so doesn’t rubber

Wood does not conduct electricity; _____. A: so doesn’t rubber B: also doesn’t rubber C: nor does rubber D: nor rubber does

Wood does not conduct electricity, __________. A: so doesn't rubber B: also doesn't rubber C: nor does rubber D: neither rubber does

Wood does not conduct electricity; _____. A: so doesn’t rubber B: also doesn’t rubber C: nor does rubber D: nor rubber does

Wood does not conduct electricity, ______ A: nor rubber does B: B. nor does rubber C: also doesn’t rubber D: D. so doesn’t rubber

6) Rubber is _________, so a ball made of rubber is easy to bounce.

下列各语句序列中，能够将变量u和s中的较大值赋值到变量t中的是（ ）。 A: if(u>s)t=u ; t=s; B: t=s ; if(u>s)t=u; C: if(u>s)t=s ; else t=u; D: t=u ; if(u>s)t=s;