“凌汛”多发生于冬季的封河期和春季的开河期，是一种大量的冰、水共存的现象，对沿河的生产、生活及人民的生命和财产安全造成巨大影响。下列河流中可能出现“凌汛”的是
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_____, experts point out that students can easily fail at starting their business because of a lack of preparations.
| A．But | B．However | C．while | D．though |
It has always been the _____ of our goverment to encourage graduates to start their business.
| A．plan | B．campaign | C．procedure | D．policy |
The most important _____ of his speech at the G20 summit was that we should all unite to fight against the finanical.
| A．element | B．spot | C．view | D．point |
He directed exposure to pigs,otherwise he_______pig flu.
| A．couldn’t get | B．wouldn’t have gotten | C．couldn’t have got | D．woud get |
In no time _______ me if he had any further information for pig flu..
| A．will he declare | B．he would notice | C．would he notify | D．he will note |