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【单选题】
氯乙酸生产工艺醋酸泄漏着火事故，外配备的个人防护用具不包括（ ）。A.
空气呼吸器
B.
戴耐酸碱手套
C.
穿防化服
D.
佩戴护目镜和过滤式防毒面具（酸性气体）
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皮皮学刷刷变学霸
举一反三
【单选题】He left school after taking six O-levels because______.
A.
he was afraid that the market might disappear
B.
he did not enjoy school at all
C.
he wanted to work on computers
D.
he wanted to become a millionaire and retire early
【单选题】— He said he would arrive _____ six o’clock. But now it’s nearly seven. — Maybe he will arrive _____ a few minutes.
A.
at; in
B.
in; in
C.
after; after
D.
in; after
【单选题】---Where is George? He said he would meet me here at 3 o’clock. ---He seems ________ with Mr. Brown in the office.
A.
to talk
B.
to have talked
C.
to be talking
D.
to be talked
【单选题】–Could you tell me ? –At 8 o’clock.
A.
when will he get there
B.
when he will get there
C.
where he will go
D.
how will he go there
【简答题】Why did he leave school after taking six O-levels? Because he wanted to ______.
【单选题】How did Yao react to O'Neil's comment?
A.
He attacked O'Neil violently.
B.
He ridiculed O'Neil before the reporter.
C.
He faced it with a sense of humor.
D.
He avoided to answer the reporter's question.
【简答题】任何一个通信系统都可以看作是由发送设备、传输信道和接收设备三大部分组成。我们把产生和发送信息的一端称为( 1 ),把接收信息的一端称为( 2 ),把他们之间的通信线路称为( 3 )。
【单选题】It was seven o;clock in the morning ____ he came back.It was really at seven o’clock ___ he came back from work this morning.
A.
that; that
B.
when;when
C.
when; that
D.
that;when
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