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【多选题】
下列工程必须编制安全专项施工方案的有（）。A.
开挖深度超过3m（含3m）的基坑（槽）并采用支护结构施工的工程
B.
基坑虽未超过3m，但地质条件和周围环境复杂、地下水位在坑底以上的工程
C.
高度超过20m的落地式钢管脚手架工程
D.
起重吊装工程
E.
采用人工、机械拆除或爆破拆除的工程
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【简答题】25修约到个数位的0.5单位是（），将830修约到百位数的0.2单位是（）。
【简答题】将60.25修约到个数位的0.5单位是 ,将 10.2750 修约至小数点后两位 , 27.1850 修约至小数点后两位 , 4.815修约到2位小数为 。
【单选题】--- Have you ever seen _____ one-eyed elephant ? --- No, never. And you?
A.
a
B.
an
C.
any
D.
some
【单选题】－ Have you seen the film Kongfu Panda? － No. but some of my friends _______.
A.
are
B.
have
C.
do
D.
will
【单选题】土石围堰适用于( )。
A.
砂类、黏性土、碎石土及风化岩石等河床的深水基础
B.
水深1.5m以内，流速0. 5m/s以内，河床土质渗水性较小时
C.
水深3m以内，流速1. 5m/s以内，河床土质渗水性较小时
D.
埋置不深的水中基础
【单选题】—Hi, John, I have not seen you for a long time. What _______ recently? —Carrying on some research on wildlife. [ ]
A.
have you been doing
B.
have you done
C.
were you doing
D.
did you do
【简答题】May be you have seen this in schools: some students are studying nearly all the time but they just pass their exams, while some others may spend much less time on their books but do much better in exa...
【简答题】将60.25修约到个数位的0.5单位。
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