非金属氧化物在下列反应中不表现为酸性氧化物性质的是
| A．SO2+Na2SO3+H2O==2NaHSO3 |
| B．Ca（ClO）2+CO2+H2O==CaCO3+2HclO |
| C．SO2+H2O2==H2SO4 |
| D．P2O5+3CaO==Ca3（PO4）2 |
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
Jenny nearly missed the flight______ doing too much shopping.
| A．as a result of | B．on top of | C．in front of | D．in need of |
The CDs are on sale! Buy one and you get ______ completely free.
| A．other | B．others | C．one | D．ones ks |
I’m sure that your letter will get______ attention. They know you’re waiting for the reply. 
| A．continued | B．immediate | C．careful | D．general |
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |