A、dry
B、waterproof
C、wet
第1题:
I ()supper when I()someone knocking at the door.
A、made . . . Heard
B、made . . .was heard
C、was making . . . was hearing
D、was making . . . heard
第2题:
______ it rain tomorrow moring, the loading ______.
A.Should / will be postponed
B.If / shall be postponed
C.Should / would be postponed
D.If / has to be postponed
第3题:
2、下面能正确显示水分子表达式的选项为()。
A.H<sub>2</sub>O
B.H<small>2</small>O
C.H<small><sup>2</sup></small>O
D.H<small><sub>2</sub></small>O
第4题:
________ the vessel have no safety radiotelegraphy certificate at the time of her delivery,she ________ be held to be unseaworthy.
A.If/may
B.Will/shall
C.Should/would
D.Would/should
第5题:
第6题:
下面能正确显示水分子表达式的选项为()。
A.H<sub>2</sub>O
B.H<small>2</small>O
C.H<small><sup>2</sup></small>O
D.H<small><sub>2</sub></small>O