the transformation of these valleys and plains.
the use of these valleys’ soil and water.
the timing of flood seasons.
the calendar.
第1题：
According to the passage, the main purposes of futures contracts are ______.
A．to hedge
B．to speculate
C．to arbitrage
D．all of the above
第2题：
Which one of the followings is not a right way to behave during mooring unmooring operation?—_______.
A.Stay close to the towline at all time
B.Beware the bights
C.When operating the winch/windlass,ensure that yourself understand the controls
D.When the tug is being secured or let go, monitor the operation closely
第3题：
此题为判断题(对，错)。
第4题：
第5题：
According to the anti -railway group, all the followings are true but ______.
A) tunnels are dangerous to public health
B) the noise and the glare of the engine fire may affect people' s nerves
C) the rapid speed through the air does damage to people's lungs
D) to those with high blood - pressure, the rapid speed of the train causes them to die
第6题：
according to hedge,‘denotiative meaning drives from a mixture of cultural ,political,social,and historical sources and learners will be aware of this phenomenon in their own language’ but may not be so aware of it in the target language. ()
此题为判断题(对，错)。
第7题：
Because language is basically culture specific, () implicature of the same expression may vary under different cultural background.
A、conventional
B、conversational
C、conventional and conversational
D、all the above
第8题：
According to the assumption given in Last Para., we don't exactly know______.
第9题：
According to the Insurance Terms of PICC，All Risk covers ______.
A.total and partial loss
B.4／4 collision liability
C.general average
D.all of the above
第10题：