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【单选题】
男,45岁。有高血压史。因阵发性心悸2天来诊。体检:血压120/70mmHg,心率180次/分,律齐,心音正常,无杂音。1分钟后心率降至80次/分,律齐。30秒后又复至180次/分。最可能的诊断为A.
心动过速
B.
阵发性心房颤动
C.
阵发性室上性心动过速
D.
阵发性心房扑动
E.
三度房室传导阻滞
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举一反三
【单选题】— You look unhappy, my son? — I'm wondering how long it'll be ________ we come to China again. [ ]
A.
since
B.
when
C.
before
D.
after
【单选题】--Excuse me, sir. Look at the sign on the wall “NO ____”. --Oh, I’m sorry. I’ll never do it again.
A.
PARKED
B.
SMOKE
C.
SPITTING
D.
SMOKED
【单选题】－Look! The dress over there is so beautiful. I’ll take it. －You’d better ________first. I’m afraid it’s too short for you.
A.
pay for it
B.
put it on
C.
try it on
D.
wait for it
【单选题】听力原文：M: Look at the lake. I'm glad we'll be able to go skating this weekend. W: Not if it's too windy. Q: What's the weather like? (2)
A.
It's windy.
B.
It's cold.
C.
It's warm.
D.
It's rainy.
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