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【单选题】
微量成分是指被测组分的含量为（ ）。A.
0.01% ～ 1%
B.
>1%
C.
<0.01%< /div>
D.
0.01% ～ 0.001%
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皮皮学刷刷变学霸
举一反三
【单选题】His sister ______her hometown for three years. She'll return next year.
A.
left
B.
has left
C.
has been away
D.
has been away from
【单选题】The school is far away from the city, it is located __________ an island.
A.
in
B.
at
C.
on
D.
to
【简答题】中介语偏误的 “化石化”现象表明中介语的偏误具有 ( ) 特点。
【单选题】--How long have you _ Teresa? -- For three years by now. Our wedding anniversary is coming next week. .
A.
got married to
B.
married
C.
married with
D.
been married to
【单选题】下面的关键字:发光二极管、电阻、电容等在Proteus里面的关键词是什么?
A.
Resistors、Capacitors、Led
B.
Led、Resistors、Capacitors
C.
Resistors、Led、Capacitors
D.
Capacitors、Led、Resistors
【简答题】The city is far away from home, so they will __________leave early tomorrow morning. Complete the sentences with ‘must’ or ‘have to’.
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