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【单选题】
The teacher knows that you are always the first ________ to the classroom since last September.A.
coming
B.
to come
C.
came
D.
has come
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举一反三
【单选题】Last week two engineers _______ to help the technical problems of the project. A. have sent B. were sent C. sent D. had sent
A.
have sent
B.
were sent
C.
sent
D.
had sent
【单选题】A doctor, together with two nurses, ______ sent to that faraway village to help the sick people.
A.
have been
B.
has been
C.
has
D.
have
【多选题】用浇铸法制作的假硬币主要特点是（）。
A.
表面色泽发白发闷，没有金属光泽
B.
用手指反复捻擦其表面，会留下灰黑色污迹
C.
周边浇注打磨痕迹明显，直径一般小于真币
D.
单枚质量一般高于真币，多数无磁性
E.
落地声较闷
【多选题】用铸造法制作的假硬币主要特点是（）。
A.
表面色泽发白发闷，没有金属光泽
B.
用手指反复捻擦其表面，币面会留下灰黑色污迹
C.
周边浇铸打磨痕迹明显，直径一般小于真币
D.
单枚质量一般高于真币，多数无磁性
E.
落地声音较沉闷
【单选题】The car ran into a crowd of middle school students, ______to hospital immediately.
A.
two of whom sent
B.
two of them sent
C.
two of whom are sent
D.
two of them sending
【单选题】以下关于光纤接入技术的描述中,错误的是
A.
光纤接入使指局端与用户端之间完全以光纤作为传输介质的接入方式
B.
光纤接入可以分为有源光网络与无源光网络接入
C.
家庭与办公室接入主要采用有源光网络接入方式
D.
FTTx 的 X 表示不同的光纤接入地点
【单选题】All the donations ____________to ORBIS in two days,
A.
will send
B.
must sent
C.
were sent
D.
must be sent
【简答题】常用钢结构构件代号中B表示 。
【单选题】The car ran into a crowd of middle school students, ______to hospital immediately.
A.
two of whom sent
B.
two of them sending
C.
two of whom are sent
D.
two of them sent
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