问题
单项选择题
一般在井内不稳定、压井液外溢、（）等情况下注灰塞。
A、压力平衡
B、气浸
C、井内不出油、气、水
D、井温不高
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
一般在井内不稳定、压井液外溢、（）等情况下注灰塞。
A、压力平衡
B、气浸
C、井内不出油、气、水
D、井温不高
参考答案：B
| 选择句子补全对话。 | |
 Zip: Here we are at the sports meeting. Zoom: Look! What is the little kangaroo doing? Zip: 1.________ Zoom: 2.________ Zip: Here she is. Zoom: I see the duck family. Zip: Where are they? Zoom : 3.________ Zip: What are they doing? Zoom: 4.________ They are fast (快的). Zip: Who's the first (第一)? Zoom: 5.________ What are you doing? Zip: I'm taking pictures (拍照片). They are so funny.
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