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【单选题】
—How long have you been studying today? —_______. [ ]A.
After 7 o'clock
B.
At 7 o'clock.
C.
7 o'clock ago
D.
Since 7 o'clock
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【简答题】读中国示意图和相关资料，回答下列问题： 材料： 2010年12月30日，国家发展改革委、水利部、农业部、国家林业局对山西、内蒙古、河南、陕西、甘肃、宁夏、青海人民政府联合下发了《黄土高原地区综合治理规划大纲（2010~2030年）》的通知。 （1）图中数字序号中代表黄土高原的是________。 （2）黄土高原东起_________山、西至乌鞘岭、南连秦岭、北抵长城。 （3）国家对黄土高原地区提出...
【单选题】A multi-stage rocket refers to ______ .
A.
several rockets which are separated from each other
B.
a single rocket with enough fuel
C.
the booster which is the biggest and can lift the whole rocket from the ground
D.
a rocket with several parts, and each of which can help to push the spaceship into the space
【单选题】We ______each other since_______.
A.
have known: ten years ago
B.
knew: ten years ago
C.
have known: ten years
D.
knew; ten years
【单选题】There _____ a talk on science next week. All the students are always looking forward to it. [ ]
A.
will have
B.
is going to be
C.
are going to be
D.
is going to have
【单选题】护士小张在为某患者做鼻饲操作时,患者突然出现发绀、呛咳。小张正确的处置是
A.
托起患者的头部插管
B.
嘱患者深呼吸，休息片刻后再继续插管
C.
拔出胃管，休息片刻后重新插管
D.
嘱患者做吞咽动作
E.
用注射器抽吸胃液
【单选题】It is necessary that he______the task by the end of next week.
A.
fulfill
B.
will fulfill
C.
will have fulfilled
D.
fulfills
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