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【多选题】
构成霉菌营养体的基本单位是 ，呈 状。A.
菌丝
B.
透明管状
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【单选题】—What will you buy for your boyfriend's birthday? —I want to buy a () wallet for him.
A.
black leather small
B.
small black leather
C.
small leather black
D.
black small leather
【简答题】电路如 右 图所示。 I S =2A , R 1 =50 W , R 2 =15 W , R 3 =35 W , L =0. 2 H 。在 t =0 时开关 闭合 ,试求开 闭合 后电路过渡过程的时间常数 和电感中的电流 。
【单选题】—Can I help you?—I want to buy a blue tie to my shirt.A．fitB．matchC．suitD．be fit for
A.
—Can I help you? —I want to buy a blue tie to____ my shirt. A．fit
B.
match
C.
suit
D.
be fit for
【单选题】I want to buy a hat, but there are so many kinds that I can’t decide to take.
A.
which
B.
when
C.
how
D.
where
【单选题】I want to buy a computer, but there is only one left in that shop, so I'll have to buy ______.
A.
one
B.
it
C.
that
D.
them
【简答题】电路如 右 图所示。 I S =2A , R 1 =50 W , R 2 =15 W , R 3 =35 W , L =0. 2 H 。在 t =0 时开关断开,试求开关断开后电路过渡过程的时间常数 和电感中的电流 。
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