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选出下列句子中语法错误的选项:I have three friends.Mike, Billy and Sandy.()
A.I have three friends
B.Mike,
C.Mike, Billy and Sandy
D.没有错误
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A.I have three friends
B.Mike,
C.Mike, Billy and Sandy
D.没有错误
A.He cares
B.thus
C.he hopes they can live
D.没有错误
请从下列选项中选出“在美国,人人都能买到枪”地道的英文表达。()
A、In the United States, everyone can buy a gun.
B、In the United States, guns are available to everyone.
C、In the United States, every person can buy a gun.
下列选项中,属于常模参照测验的是()
A.教师自编测验
B.艾森克人格测验
C.句子完成测验
D.医师资格测验
A.will wash
B.shall wash
C.have washed
You______ the difficulties after I explain the whole thing to you.
A.will be seen
B.will have seen
C.will see
D.see
My wallet is nowhere to be found. I______ when I was on the bus.
A.must drop it
B.should have dropped it
C.must have dropped it
D.had dropped it
My watch is nowhere to be found. I ______ when I was on the bus.
A.must drop it
B.should have dropped it
C.must have dropped it
D.ought to have dropped it
(3)设文法G[S]的LR(1)有效项目为: I=[S→.A,] 求closure({I})。 (4)设LR(1)项目集中有一状态Si: Si={[A→A+A.,+/],[A→A.+A,+/]} 求go(Si,+)。
A、今天星期一
B、He is sick
C、I have just finished my word
D、请把这件事尽快办一下