Read the book blurb about 'Tis: A Memoir and discuss the questions."Coming after the worldwide best-seller Angela's Ashes, Frank McCOurt's second book of memoirs tells the story of his American journey. It follows his progress from his arrival in New York in 1949 as an immigrant with no formal education to brilliant storyteller and schoolteacher. Frank McCourt continues his vivid story about survival.1. What difficulties might Frank McCourt have faced as an immigrant when he arrived in New York?
A. He had no place to live in.
B. He had no formal education.
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What do you think the blurb means when it refers to "survival"? Does it suggest Frank McCourt had an easy life?
A. Yes, he had an easy life.
B. No, he didn't have an easy life.
质子理论认为,下列物质中可以作为质子酸的是( )
A. H2S、C2O42−、HCO3−
B. H2CO3、NH4+、H2O
Cl−、BF3、OH−
D. H2S、CO32−、H2O
用质子理论比较下列物质的碱性由强到弱的顺序为( )
A. CN− > CO32− > Ac− >NO3−
B. CO32− > CN− > Ac− >NO3−
C. Ac− >NO3− > CN− > CO32−
D. NO3− > Ac− > CO32− > CN−
质子理论认为,下列物质中全部是两性物质的是( )。
Ac− 、CO32−、PO43−、H2O
B. CO32−、CN− 、Ac−、NO3−
C. HS−、HCO3−、H2PO4−、H2O
D. H2S、Ac− 、NH4+、H2O
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