皮皮学，免费搜题
登录
搜题
【单选题】
下列哪个方法不是测定水体中的汞?A.
色谱法
B.
冷原子荧光法
C.
冷原子吸收法
D.
双硫腙分光光度法
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】After his long talk with his father,____________________________(他的脸上很快就又露出自信的神情).
【单选题】When a function just needs to use a copy of an argument passed to it, the argument should normally be passed ________.
A.
by variable
B.
by value
C.
by reference
D.
as a string
【单选题】Which of the following would weaken the author's argument that the Antikythera mechanism was a thousand years ahead of its time?
A.
Items discovered on the Antikythera shipwreck were found to date back to 500 BCE.
B.
Similarly complex astrolabes were recently found at a series of archeological sites dating between 100 and 500 CE.
C.
Complex machines involving pulleys and ropes were found at archeological sites on the Greek island of Antikythera.
D.
At the time of the Antikythera shipwreck, the island of Rhodes was famous for its collection of scientific devices.
E.
Ancient Romans were famous for their acquisitions of Greek art and architecture.
【单选题】In his talk, the____ Prime Minister expressed his satisfaction, ____ that he had enjoyed his stay here. [ ]
A.
visiting, add
B.
visited, adding
C.
visiting, adding
D.
visited, added
【单选题】When invited to talk about his achievements, he refused to blow his own ______ and declined to speak at the meeting.
A.
trumpet
B.
whistle
C.
bugle
D.
flute
【单选题】Bob tried to sweet-talk his mother into letting him go out. But when he saw his sweet talk________， he lost his temper.
A.
hadn’t worked
B.
wasn’t working
C.
isn’t working
D.
doesn’t work
【单选题】The visiting Minister expressed his satisfaction with his talk,__________ that he had enjoyed his stay here.
A.
having added
B.
to add
C.
adding
D.
added
【简答题】A most ________ argument about who should go and fetch the bread from the kitchen was going on when I came in. A) trivial B) delicate C) minor D) miniature
相关题目：