题目内容
当系统中按键较多时，不宜采用独立按键。
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当系统中按键较多时，应当采用独立按键。
Section B8.A) The partyB) The exhibition.C) The holiday.D) The interview9.A) This afternoon.B) Tonight.C) Right now.D) Tomorrow10.A) Buy a gift.B) Send a parcelC) Book a ticketD) Rent an apartment11.A) He missed the bus.B) He got lostC) His car broke downD) His bicycle was stolen.12.A) Buy the new software.B) Ask Jack for helpC) Stop using the software.D) Help the woman.13.A) He is the new manager.B) He is away on business.C) He is on sick leave.D) He is retired.14.A) Ask his parents for help.B) Start to save money.C) Borrow money from his friends.D) Get a loan from the bank.
水泥混凝土在三辊轴滚压前,振实料位高度宜高于模板顶面( )mm。
三辊轴整平混凝土面层时,表面的砂浆厚度控制在( )mm,整平机前方被振动轴提起向前推移的水泥砂浆,逐渐变稀浆,要人工刮除丢弃。
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