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【单选题】
商品条码是用来表示商品标识代码的一种( )条码,可被机器快速识读和处理。A.
数字型
B.
字母型
C.
数字-字母混合型
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】从下面每句划线部分中选出错误的那个部分，并加以改正。 小题1:My teacher advised me that I solve the problem by the way． 小题2: Both of her sons joined in the army two years ago . 小题3:I can hard wait to go on my trip to France . 小题4:...
【简答题】整首诗表达了作者怎样的感情?
【简答题】一张完整的零件图必须包含以下四个内容：1.一组图形 2.全部尺寸 3.技术要求 4.A.
【单选题】From the last paragraph we can infer that______.
A.
the government hopes to solve the problem by way of volunteer restrictions
B.
more than 47 million Americans who are qualified to get flu vaccine shots can not get them this year
C.
America has to deal with a limited supply of flu vaccines this year
D.
normally only a small percentage of American population gets flu vaccine shots each year
【单选题】It is time _____us _____some effective measures to solve the proble
A.
to; have taken
B.
to; took
C.
for; to take
D.
for; took
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