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写出下列句子的单复数形式。 1. This is a towel._______________________________________________

来源:志趣文摘     时间: 2019-08-18
写出下列句子的单复数形式。 1. This is a towel.___________________________________________________2. These are peas.___________________________________________________3. These are onions.___________________________________________________4. These are carrots. ___________________________________________________
1. These are towels.
2. This is a pea.
3. This is an onion.
4. This is a carrot.

若复数1 bi/2 i是纯虚数(i是虚数单位,b是实数),则b=
若复数1 bi/2 i是纯虚数(i是虚数单位,b是实数),则b=

写出下列单词的复数形式 1. tomato
写出下列单词的复数形式 1. tomato

1. These are towels.
2. This is a pea.
3. This is an onion.
4. This is a carrot.

1. These are towels.
2. This is a pea.
3. This is an onion.
4. This is a carrot.

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