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【单选题】
下列麻药中属于吸入麻醉药的是( )A.
犬眠宝
B.
异氟烷
C.
静松灵
D.
水合氯醛
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【简答题】There were so many people at the beach. It was hard to walk through the ________________ .2. The ________________ asked customers in the airport to take different flights.3. Ana's favorite activity is...
【单选题】粗直径钢筋的套筒挤压连接、锥螺纹连接、镦粗直螺纹连接、滚压直螺纹连接，其中连接质量最稳定、可靠、速度快，且无需切削套丝工艺(不形成虚假螺纹)的是（ ）。
A.
套筒挤压连接
B.
锥螺纹连接
C.
镦粗直螺纹连接
D.
滚压直螺纹连接
【简答题】螺纹连接是一种()连接，分为()螺纹连接和()螺纹连接两大类。
【单选题】-Look at the lovely dog. Guess_______ at birth. -I think he might be 100 grams.
A.
what could he do
B.
what his weight was
C.
what was his weight
D.
what he could do
【简答题】This is Betty’s bedroom. Please come in and have a look at the pictures in the room. Let’s look at the one on the desk first(首先), please. It’s small but very good. It’s a photo of a man, Bob Brown, an...
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